diff --git a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessageTest.java b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessageTest.java
index 2101e3077a..868905feda 100644
--- a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessageTest.java
+++ b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessageTest.java
@@ -552,6 +552,24 @@ public void testNumericMismatch() throws Exception {
     }
   }
 
+  @Test public void testMixedCasedFieldNames() throws Exception {
+    TableFieldSchema field = TableFieldSchema
+      .newBuilder()
+      .setName("fooBar")
+      .setType(TableFieldSchema.Type.STRING)
+      .setMode(TableFieldSchema.Mode.NULLABLE)
+      .build();
+    TableSchema tableSchema = TableSchema.newBuilder().addFields(field).build();
+
+    JSONObject json = new JSONObject();
+    json.put("fooBar", "hello");
+
+    DynamicMessage protoMsg = JsonToProtoMessage.convertJsonToProtoMessage(
+      TestMixedCaseFieldNames.getDescriptor(), tableSchema, json
+    );
+
+  }
+
   @Test
   public void testBigNumericMismatch() throws Exception {
     TableFieldSchema field =
diff --git a/google-cloud-bigquerystorage/src/test/proto/jsonTest.proto b/google-cloud-bigquerystorage/src/test/proto/jsonTest.proto
index c08dd7648f..29efcdfb9c 100644
--- a/google-cloud-bigquerystorage/src/test/proto/jsonTest.proto
+++ b/google-cloud-bigquerystorage/src/test/proto/jsonTest.proto
@@ -156,3 +156,7 @@ message TestNumeric {
 message TestBignumeric {
   repeated bytes bignumeric = 1;
 }
+
+message TestMixedCaseFieldNames {
+  required string foobar = 1;
+}