diff --git a/Source/JavaScriptCore/parser/SourceProviderCacheItem.h b/Source/JavaScriptCore/parser/SourceProviderCacheItem.h
index eeac6fe..d0644d2 100644
--- a/Source/JavaScriptCore/parser/SourceProviderCacheItem.h
+++ b/Source/JavaScriptCore/parser/SourceProviderCacheItem.h
@@ -25,6 +25,7 @@
 
 #pragma once
 
+#include "ParserModes.h"
 #include "ParserTokens.h"
 #include <wtf/Vector.h>
 #include <wtf/text/UniquedStringImpl.h>