diff --git a/snakemake/parser.py b/snakemake/parser.py
index a293b013b..521d3c8c0 100644
--- a/snakemake/parser.py
+++ b/snakemake/parser.py
@@ -955,11 +955,12 @@ def end(self):
         )
         yield "\n"
 
-        # yield with block
-        yield from self._with_block
+        if self._with_block:
+            # yield with block
+            yield from self._with_block
 
-        yield "@workflow.run"
-        yield "\n"
+            yield "@workflow.run"
+            yield "\n"
 
         rulename = self.rules[0]
         if rulename == "*":
diff --git a/tests/test_modules_all/module-test/Snakefile b/tests/test_modules_all/module-test/Snakefile
index 1d4cb5d4e..9a95fd324 100644
--- a/tests/test_modules_all/module-test/Snakefile
+++ b/tests/test_modules_all/module-test/Snakefile
@@ -5,8 +5,13 @@ def some_func():
     return 15
 
 
+rule all:
+    input:
+        "results/test.out"
+
+
 rule a:
     output:
         "results/test.out"
     shell:
-        "echo {config[test]} > {output}"
\ No newline at end of file
+        "echo {config[test]} > {output}"