diff --git a/tools/dev/msftidy_docs.rb b/tools/dev/msftidy_docs.rb
index e27e51d1b6..72bfdb9ee5 100755
--- a/tools/dev/msftidy_docs.rb
+++ b/tools/dev/msftidy_docs.rb
@@ -257,7 +257,7 @@ class MsftidyDoc
         warn("Instructional text not removed", idx)
       end
 
-      if ln =~ /^# /
+      if !in_codeblock && ln =~ /^# /
         warn("No H1 (#) headers.  If this is code, indent.", idx)
       end