diff --git a/stylecop.ruleset b/stylecop.ruleset
index b26ed9d4..5cb6a671 100644
--- a/stylecop.ruleset
+++ b/stylecop.ruleset
@@ -7,7 +7,7 @@
 
     <!-- Spacing rules -->
     <Rule Id="SA1000" Action="Error" /> <!-- Keywords must be spaced correctly -->
-    <Rule Id="SA1001" Action="None" /> <!-- Commas must be spaced correctly -->
+    <Rule Id="SA1001" Action="Error" /> <!-- Commas must be spaced correctly -->
     <Rule Id="SA1002" Action="None" /> <!-- Semicolons must be spaced correctly -->
     <Rule Id="SA1003" Action="None" /> <!-- Symbols must be spaced correctly -->
     <Rule Id="SA1004" Action="None" /> <!-- Documentation lines must begin with single space -->