diff --git a/scripts/upgrade b/scripts/upgrade
index 8c36837..045e126 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -103,10 +103,10 @@ then
 	inc=0
 
 	# Have to wait the time that gitlab reload
-	while [ $status_code == "502" ] && [ $inc < 10 ]
+	while [ $status_code == "502" ] && [ $inc -lt 10 ]
 	do
 		sleep 10;
 		status_code=$(curl -s -o /dev/null -w '%{http_code}' "$domain${path_url%/}")
 		((inc++))
 	done;
-fi;
\ No newline at end of file
+fi;