diff --git a/regex/nfa.go b/regex/nfa.go
index 8bd1d74..db53c00 100644
--- a/regex/nfa.go
+++ b/regex/nfa.go
@@ -183,7 +183,7 @@ func (s nfaState) checkAssertion(str []rune, idx int) bool {
 			strToMatch = string(runesToMatch)
 		}
 
-		regComp := Reg{startState, s.lookaroundNumCaptureGroups}
+		regComp := Reg{startState, s.lookaroundNumCaptureGroups, s.lookaroundRegex}
 		matchIndices := regComp.FindAll(strToMatch)
 
 		numMatchesFound := 0