diff --git a/grpoppro b/grpoppro
index a73a923..aa37cc8 100755
--- a/grpoppro
+++ b/grpoppro
@@ -179,7 +179,7 @@ function basics {
 # Retrieve internal ID
 function getInternalID {
   response="$(curlRequest "$simpleurl")"
-  if echo "$response" | grep -q 404; then
+  if echo "$response" | grep -q "404 Not Found"; then
     message "Non valid response"
     exit 0
   fi