diff --git a/include/types/hlua.h b/include/types/hlua.h
index 36554e2..70c7685 100644
--- a/include/types/hlua.h
+++ b/include/types/hlua.h
@@ -6,6 +6,7 @@
 #include <lua.h>
 #include <lauxlib.h>
 
+#include <common/regex.h>
 #include <common/xref.h>
 
 #include <types/proto_http.h>