diff --git a/renew_cert.sh b/renew_cert.sh
index b2e5c80..41ed458 100644
--- a/renew_cert.sh
+++ b/renew_cert.sh
@@ -131,7 +131,13 @@ do
     continue
   fi
 
-  mv -f "$arg/tmp.pem" "$arg/$NAME.pem"
+  if [ -s "$arg/tmp.pem" ]; then
+    mv -f "$arg/tmp.pem" "$arg/$NAME.pem"
+  else
+    echo "New certificate for \"$NAME\" doesn't exists or is empty"
+    rm -rf "$arg/tmp.pem"
+    continue
+  fi
 
   echo "Certificate for \"$NAME\" successfully created!"
   counter=$((counter+1))