--- file.c
+++ file.c
@@ -572,7 +572,7 @@
 		Pattern.loopDetectRel = 0;
 		Pattern.loopDetectAbs = first;
 		if(!hash_lookup(filehash, (T_HashTableEl) &Pattern, 
-				(T_HashTableEl **)&File, 0)){
+				(T_HashTableEl **)(void *)&File, 0)){
 			File->refs++;
 			This->refs--;
 			return (Stream_t *) File;