diff --git a/vlib/hash/wyhash.c.v b/vlib/hash/wyhash.c.v
index 46f563659e..6758321acf 100644
--- a/vlib/hash/wyhash.c.v
+++ b/vlib/hash/wyhash.c.v
@@ -2,12 +2,12 @@ module hash
 
 //#flag -I @VROOT/thirdparty/wyhash
 //#include "wyhash.h"
-fn C.wyhash(byteptr, u64, u64) u64
+fn C.wyhash(byteptr, u64, u64, &u64) u64
 fn C.wyhash64(u64, u64) u64
 
 [inline]
 pub fn wyhash_c(key byteptr, len u64, seed u64) u64 {
-	return C.wyhash(key, len, seed)
+	return C.wyhash(key, len, seed, C._wyp)
 }
 
 [inline]