diff --git a/docs/cse/rules/cse-rules-syntax.md b/docs/cse/rules/cse-rules-syntax.md
index 69c3094e7f..a49cde2b3f 100644
--- a/docs/cse/rules/cse-rules-syntax.md
+++ b/docs/cse/rules/cse-rules-syntax.md
@@ -511,7 +511,7 @@ Compares two IPv4 addresses and returns true if the network prefixes match.
 
 The following expression returns "true":
 
-`compareCIDRPprefix("10.10.1.35", "10.10.1.100", "24")`
+`compareCIDRPrefix("10.10.1.35", "10.10.1.100", "24")`
 
 ### concat