diff --git a/src/kws.c b/src/kws.c
index 1bbb26f..6d7dc3b 100644
--- a/src/kws.c
+++ b/src/kws.c
@@ -1037,7 +1037,7 @@ KS_DECLARE(ks_ssize_t) kws_close(kws_t *kws, int16_t reason)
 		kws->uri = NULL;
 	}
 
-	if (reason && kws->sock != KS_SOCK_INVALID) {
+	if (kws->sock != KS_SOCK_INVALID) {
 		uint16_t *u16;
 		uint8_t fr[4] = {WSOC_CLOSE | 0x80, 2, 0};