diff --git a/scripts/2.first_start_k8s.sh b/scripts/2.first_start_k8s.sh
index 0e43309..bdf9f16 100755
--- a/scripts/2.first_start_k8s.sh
+++ b/scripts/2.first_start_k8s.sh
@@ -27,7 +27,7 @@ checkup() {
         break
       else
         ((tries--))
-        if [ $tries < 1 ]; then
+        if [ "$tries" -lt "1" ]; then
           pinfo "Timeout waiting for node detection, please investigate why node $host is not up by now"
           break
         fi