diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index a41cc02..03725c0 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -744,7 +744,7 @@
 	return rc;
 }
 
-static int x25_wait_for_data(struct sock *sk, int timeout)
+static int x25_wait_for_data(struct sock *sk, long timeout)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	int rc = 0;