diff --git a/subprojects/gst-editing-services/tools/ges-launcher.c b/subprojects/gst-editing-services/tools/ges-launcher.c
index fbe22f356a..6bd44e6f46 100644
--- a/subprojects/gst-editing-services/tools/ges-launcher.c
+++ b/subprojects/gst-editing-services/tools/ges-launcher.c
@@ -1570,7 +1570,7 @@ _local_command_line (GApplication * application, gchar ** arguments[],
 
   if (opts->inspect_action_type) {
     ges_validate_print_action_types ((const gchar **) &((*arguments)[1]),
-        argc - 1);
+        g_strv_length (*arguments) - 1);
     goto done;
   }