diff --git a/layout/style/nsCSSRuleProcessor.cpp b/layout/style/nsCSSRuleProcessor.cpp
index de4ee0fc3b..73209a951a 100644
--- a/layout/style/nsCSSRuleProcessor.cpp
+++ b/layout/style/nsCSSRuleProcessor.cpp
@@ -2713,7 +2713,8 @@ static bool SelectorListMatches(Element* aElement,
                              aNodeMatchContext,
                              aTreeMatchContext,
                              SelectorMatchesFlags::IS_PSEUDO_CLASS_ARGUMENT,
-                             aIsForgiving);
+                             aIsForgiving,
+                             aPreventComplexSelectors);
 }
 
 static inline