diff --git a/reset.sh b/reset.sh
index d43284a..228b8ec 100755
--- a/reset.sh
+++ b/reset.sh
@@ -14,7 +14,7 @@ PDOMAIN=$DOMAIN
 envsubst '$PDOMAIN,$UPST' < nginx/conf.d/a-vars.conf.tmpl > nginx/conf.d/a-vars.conf
 
 
-if [ -n $IPV6_SUBNET ]; then
+if [ -n "$IPV6_SUBNET" ]; then
   echo "Rotating IP..."
   python3 smart-ipv6-rotator/smart-ipv6-rotator.py run --ipv6range=$IPV6_SUBNET
   if [ $? -ne 0 ]; then