diff --git a/pkg/engine/jmespath/functions.go b/pkg/engine/jmespath/functions.go
index 8a90a42cca..43d7ad3216 100644
--- a/pkg/engine/jmespath/functions.go
+++ b/pkg/engine/jmespath/functions.go
@@ -212,6 +212,7 @@ func GetFunctions() []*FunctionEntry {
 				},
 				Handler: jpRegexMatch,
 			},
+			ReturnType: []JpType{JpBool},
 		},
 		{
 			Entry: &gojmespath.FunctionEntry{Name: patternMatch,