diff --git a/src/jsregexp.h b/src/jsregexp.h
index b9b2f60..e1892de 100644
--- a/src/jsregexp.h
+++ b/src/jsregexp.h
@@ -28,6 +28,7 @@
 #ifndef V8_JSREGEXP_H_
 #define V8_JSREGEXP_H_
 
+#include "allocation.h"
 #include "macro-assembler.h"
 #include "zone-inl.h"