diff --git a/ggatec/ggatec.c b/ggatec/ggatec.c
index 7e1027e..5294c31 100644
--- a/ggatec/ggatec.c
+++ b/ggatec/ggatec.c
@@ -242,14 +242,14 @@ recv_thread(void *arg __unused)
 		ggio.gctl_length = hdr.gh_length;
 		ggio.gctl_error = hdr.gh_error;
 
-		if (ggio.gctl_length > buflen) {
-			g_gate_log(LOG_ERR, "Received too large data, %llu.", ggio.gctl_length);
-			reconnect = 1;
-			pthread_kill(sendtd, SIGUSR1);
-			break;
-		}
-
 		if (ggio.gctl_error == 0 && ggio.gctl_cmd == GGATE_CMD_READ) {
+			if (ggio.gctl_length > buflen) {
+				g_gate_log(LOG_ERR, "Received too large data, %llu.", ggio.gctl_length);
+				reconnect = 1;
+				pthread_kill(sendtd, SIGUSR1);
+				break;
+			}
+
 			data = g_gate_recv(recvfd, ggio.gctl_data,
 			    ggio.gctl_length, MSG_WAITALL);
 			if (reconnect)