diff --git a/plugins/fr24/fr24 b/plugins/fr24/fr24
index cef2ae55..6e93266b 100755
--- a/plugins/fr24/fr24
+++ b/plugins/fr24/fr24
@@ -45,5 +45,5 @@ planes.label planes"
         exit 0;;
 esac
 
-planes=$(curl -qs $MONITOR | grep -Eo '"d11_map_size":"[0-9]+"' | grep -Eo '[0-9]+' | tail -1)
+planes=$(curl -qs "$MONITOR" | grep -Eo '"d11_map_size":"[0-9]+"' | grep -Eo '[0-9]+' | tail -1)
 echo "planes.value $planes"