diff --git a/SC2236.md b/SC2236.md
index d993c0a..e72bbc7 100644
--- a/SC2236.md
+++ b/SC2236.md
@@ -1,6 +1,6 @@
 ## Use `-n` instead of `! -z`.
 
-(or "Use `-z` instead of `! -n`)
+(or "Use `-z` instead of `! -n`")
 
 ### Problematic code: