use hash for name lookup
diff --git a/libasn1fix/asn1fix_internal.h b/libasn1fix/asn1fix_internal.h
index 5fd7e76..c429730 100644
--- a/libasn1fix/asn1fix_internal.h
+++ b/libasn1fix/asn1fix_internal.h
@@ -22,6 +22,7 @@
 
 #include <asn1parser.h>		/* Our lovely ASN.1 parser module */
 #include <asn1_namespace.h>
+#include <genhash.h>
 #include "asn1fix.h"
 
 #ifdef	_WIN32