diff --git a/src/comment-templates.ts b/src/comment-templates.ts
index 84b093a..ab48d34 100644
--- a/src/comment-templates.ts
+++ b/src/comment-templates.ts
@@ -50,7 +50,7 @@ ${limitReached ?
 Reached maximum result count ${maxResultCount}.
 Showing ${limitedResults.length}/${results.length}
 ` : ''}
-Rules:${rules.map(formatRule).join('')}
+Rules:${rules.filter(Boolean).map(formatRule).join('')}
 
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