diff --git a/lib/socket.c b/lib/socket.c
index 6fc3b41..685936d 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -848,7 +848,7 @@ void iscsi_set_tcp_keepintvl(struct iscsi_context *iscsi, int value)
 	ISCSI_LOG(iscsi, 2, "TCP_KEEPINTVL will be set to %d on next socket creation",value);
 }
 
-int iscsi_set_tcp_keepalive(struct iscsi_context *iscsi, int idle, int count, int interval)
+int iscsi_set_tcp_keepalive(struct iscsi_context *iscsi, int idle _U_, int count _U_, int interval _U_)
 {
 #ifdef SO_KEEPALIVE
 	int value = 1;