diff --git a/src/node_dependencies/index.js b/src/node_dependencies/index.js
index 51e5a3b21..4b7c7d0d1 100644
--- a/src/node_dependencies/index.js
+++ b/src/node_dependencies/index.js
@@ -29,13 +29,14 @@ const listFilesUsingLegacyBundler = async function ({
   featureFlags,
   srcPath,
   mainFile,
+  name,
   srcDir,
   stat,
   pluginsModulesPath,
 }) {
   const [treeFiles, depFiles] = await Promise.all([
     getTreeFiles(srcPath, stat),
-    getDependencies(mainFile, srcDir, pluginsModulesPath, featureFlags),
+    getDependencies({ featureFlags, functionName: name, mainFile, pluginsModulesPath, srcDir }),
   ])
   const files = [...treeFiles, ...depFiles].map(normalize)
   const uniqueFiles = [...new Set(files)]
@@ -52,12 +53,19 @@ const isNotJunk = function (file) {
 }
 
 // Retrieve all the files recursively required by a Node.js file
-const getDependencies = async function (mainFile, srcDir, pluginsModulesPath, featureFlags) {
+const getDependencies = async function ({ featureFlags, functionName, mainFile, pluginsModulesPath, srcDir }) {
   const packageJson = await getPackageJson(srcDir)
   const state = getNewCache()
 
   try {
-    return await getFileDependencies({ featureFlags, path: mainFile, packageJson, pluginsModulesPath, state })
+    return await getFileDependencies({
+      featureFlags,
+      functionName,
+      path: mainFile,
+      packageJson,
+      pluginsModulesPath,
+      state,
+    })
   } catch (error) {
     error.message = `In file "${mainFile}"\n${error.message}`
     throw error
@@ -66,6 +74,7 @@ const getDependencies = async function (mainFile, srcDir, pluginsModulesPath, fe
 
 const getFileDependencies = async function ({
   featureFlags,
+  functionName,
   path,
   packageJson,
   pluginsModulesPath,
@@ -80,7 +89,7 @@ const getFileDependencies = async function ({
 
   const basedir = dirname(path)
   const dependencies = featureFlags.parseWithEsbuild
-    ? await listImports({ path })
+    ? await listImports({ functionName, path })
     : precinct.paperwork(path, { includeCore: false })
   const depsPaths = await Promise.all(
     dependencies.filter(Boolean).map((dependency) =>
@@ -88,6 +97,7 @@ const getFileDependencies = async function ({
         dependency,
         basedir,
         featureFlags,
+        functionName,
         packageJson,
         pluginsModulesPath,
         state,
@@ -104,6 +114,7 @@ const getImportDependencies = function ({
   dependency,
   basedir,
   featureFlags,
+  functionName,
   packageJson,
   pluginsModulesPath,
   state,
@@ -115,6 +126,7 @@ const getImportDependencies = function ({
       dependency,
       basedir,
       featureFlags,
+      functionName,
       packageJson,
       pluginsModulesPath,
       state,
@@ -134,6 +146,7 @@ const getTreeShakedDependencies = async function ({
   dependency,
   basedir,
   featureFlags,
+  functionName,
   packageJson,
   pluginsModulesPath,
   state,
@@ -142,6 +155,7 @@ const getTreeShakedDependencies = async function ({
   const path = await resolvePathPreserveSymlinks(dependency, [basedir, pluginsModulesPath].filter(Boolean))
   const depsPath = await getFileDependencies({
     featureFlags,
+    functionName,
     path,
     packageJson,
     pluginsModulesPath,
diff --git a/src/runtimes/node/bundler.js b/src/runtimes/node/bundler.js
index 0c1d625e8..190eb9f93 100644
--- a/src/runtimes/node/bundler.js
+++ b/src/runtimes/node/bundler.js
@@ -3,7 +3,7 @@ const { basename, dirname, extname, resolve, join } = require('path')
 const esbuild = require('@netlify/esbuild')
 const { tmpName } = require('tmp-promise')
 
-const { RUNTIME_JS } = require('../../utils/consts')
+const { JS_BUNDLER_ESBUILD, RUNTIME_JS } = require('../../utils/consts')
 const { getPathWithExtension, safeUnlink } = require('../../utils/fs')
 
 const { getBundlerTarget } = require('./bundler_target')
@@ -106,7 +106,10 @@ const bundleJsFile = async function ({
       warnings,
     }
   } catch (error) {
-    error.customErrorInfo = { type: 'functionsBundling', location: { functionName: name, runtime: RUNTIME_JS } }
+    error.customErrorInfo = {
+      type: 'functionsBundling',
+      location: { bundler: JS_BUNDLER_ESBUILD, functionName: name, runtime: RUNTIME_JS },
+    }
 
     throw error
   }
diff --git a/src/runtimes/node/index.js b/src/runtimes/node/index.js
index 64198ced7..c39175565 100644
--- a/src/runtimes/node/index.js
+++ b/src/runtimes/node/index.js
@@ -70,6 +70,7 @@ const zipFunction = async function ({
       featureFlags,
       filename,
       mainFile,
+      name,
       pluginsModulesPath,
       srcDir,
       srcPath,
diff --git a/src/runtimes/node/list_imports.js b/src/runtimes/node/list_imports.js
index f67b4a858..a46f61f47 100644
--- a/src/runtimes/node/list_imports.js
+++ b/src/runtimes/node/list_imports.js
@@ -2,6 +2,7 @@ const esbuild = require('@netlify/esbuild')
 const isBuiltinModule = require('is-builtin-module')
 const { tmpName } = require('tmp-promise')
 
+const { JS_BUNDLER_ZISI, RUNTIME_JS } = require('../../utils/consts')
 const { safeUnlink } = require('../../utils/fs')
 
 // Maximum number of log messages that an esbuild instance will produce. This
@@ -28,7 +29,7 @@ const getListImportsPlugin = ({ imports, path }) => ({
   },
 })
 
-const listImports = async ({ path }) => {
+const listImports = async ({ functionName, path }) => {
   // We're not interested in the output that esbuild generates, we're just
   // using it for its parsing capabilities in order to find import/require
   // statements. However, if we don't give esbuild a path in `outfile`, it
@@ -49,6 +50,13 @@ const listImports = async ({ path }) => {
       plugins: [getListImportsPlugin({ imports, path })],
       target: 'esnext',
     })
+  } catch (error) {
+    error.customErrorInfo = {
+      type: 'functionsBundling',
+      location: { bundler: JS_BUNDLER_ZISI, functionName, runtime: RUNTIME_JS },
+    }
+
+    throw error
   } finally {
     await safeUnlink(targetPath)
   }
diff --git a/src/runtimes/node/src_files.js b/src/runtimes/node/src_files.js
index 8df3adf8e..cd4e6bf25 100644
--- a/src/runtimes/node/src_files.js
+++ b/src/runtimes/node/src_files.js
@@ -57,6 +57,7 @@ const getSrcFilesAndExternalModules = async function ({
   includedFiles = [],
   includedFilesBasePath,
   mainFile,
+  name,
   pluginsModulesPath,
   srcDir,
   srcPath,
@@ -69,6 +70,7 @@ const getSrcFilesAndExternalModules = async function ({
       featureFlags,
       srcPath,
       mainFile,
+      name,
       srcDir,
       stat,
       pluginsModulesPath,
diff --git a/src/runtimes/node/zip_esbuild.js b/src/runtimes/node/zip_esbuild.js
index 9639f58e6..d46eb3e4d 100644
--- a/src/runtimes/node/zip_esbuild.js
+++ b/src/runtimes/node/zip_esbuild.js
@@ -76,6 +76,7 @@ const zipEsbuild = async ({
     includedFiles: [...(config.includedFiles || []), ...additionalPaths],
     includedFilesBasePath: config.includedFilesBasePath || basePath,
     mainFile,
+    name,
     srcPath,
     srcDir,
     pluginsModulesPath,
diff --git a/src/runtimes/node/zip_zisi.js b/src/runtimes/node/zip_zisi.js
index 3eead747a..374e990c6 100644
--- a/src/runtimes/node/zip_zisi.js
+++ b/src/runtimes/node/zip_zisi.js
@@ -15,6 +15,7 @@ const zipZisi = async ({
   featureFlags,
   filename,
   mainFile,
+  name,
   pluginsModulesPath,
   srcDir,
   srcPath,
@@ -27,6 +28,7 @@ const zipZisi = async ({
     includedFiles: config.includedFiles,
     includedFilesBasePath: config.includedFilesBasePath || basePath,
     mainFile,
+    name,
     pluginsModulesPath,
     srcDir,
     srcPath,
diff --git a/tests/fixtures/node-syntax-error/function.js b/tests/fixtures/node-syntax-error/function.js
new file mode 100644
index 000000000..e6f310e74
--- /dev/null
+++ b/tests/fixtures/node-syntax-error/function.js
@@ -0,0 +1,5 @@
+const immutable = 1
+
+immutable = 3
+
+module.exports = { immutable }
diff --git a/tests/main.js b/tests/main.js
index b971bf68a..44c407330 100644
--- a/tests/main.js
+++ b/tests/main.js
@@ -24,7 +24,12 @@ const shellUtilsStub = sinon.stub(shellUtils, 'runCommand')
 
 const { zipFunction, listFunctions, listFunctionsFiles } = require('..')
 const { ESBUILD_LOG_LIMIT } = require('../src/runtimes/node/bundler')
-const { JS_BUNDLER_ESBUILD: ESBUILD, JS_BUNDLER_ESBUILD_ZISI, JS_BUNDLER_ZISI } = require('../src/utils/consts')
+const {
+  JS_BUNDLER_ESBUILD: ESBUILD,
+  JS_BUNDLER_ESBUILD_ZISI,
+  JS_BUNDLER_ZISI,
+  JS_BUNDLER_ESBUILD,
+} = require('../src/utils/consts')
 
 const { getRequires, zipNode, zipFixture, unzipFiles, zipCheckFunctions, FIXTURES_DIR } = require('./helpers/main')
 const { computeSha1 } = require('./helpers/sha')
@@ -1570,20 +1575,28 @@ test('Throws an error if the `archiveFormat` property contains an invalid value`
   )
 })
 
-test('Adds `type: "functionsBundling"` to esbuild bundling errors', async (t) => {
-  try {
-    await zipNode(t, 'node-module-missing', {
-      opts: { config: { '*': { nodeBundler: ESBUILD } } },
-    })
+testMany(
+  'Adds `type: "functionsBundling"` to user errors (esbuild)',
+  ['bundler_default_parse_esbuild', 'bundler_esbuild'],
+  async (options, t) => {
+    const bundler = options.config['*'].nodeBundler
 
-    t.fail('Function did not throw')
-  } catch (error) {
-    t.deepEqual(error.customErrorInfo, {
-      type: 'functionsBundling',
-      location: { functionName: 'function', runtime: 'js' },
-    })
-  }
-})
+    try {
+      await zipNode(t, 'node-syntax-error', {
+        opts: options,
+      })
+
+      t.fail('Bundling should have thrown')
+    } catch (error) {
+      const { customErrorInfo } = error
+
+      t.is(customErrorInfo.type, 'functionsBundling')
+      t.is(customErrorInfo.location.bundler, bundler === JS_BUNDLER_ESBUILD ? ESBUILD : JS_BUNDLER_ZISI)
+      t.is(customErrorInfo.location.functionName, 'function')
+      t.is(customErrorInfo.location.runtime, 'js')
+    }
+  },
+)
 
 test('Returns a list of all modules with dynamic imports in a `nodeModulesWithDynamicImports` property', async (t) => {
   const fixtureName = 'node-module-dynamic-import'