diff --git a/location_taxonomize_location/location_taxonomize_location.module b/location_taxonomize_location/location_taxonomize_location.module
index 1694f40..751d0d7 100644
--- a/location_taxonomize_location/location_taxonomize_location.module
+++ b/location_taxonomize_location/location_taxonomize_location.module
@@ -66,6 +66,9 @@ function location_taxonomize_location_bulk_taxonomize_op($form_state, &$context)
     $context['sandbox']['current'] = 0;
     $context['results']['added'] = 0;
     $context['results']['processed'] = 0;
+    if (! $max) {
+      return;
+    }
   }
   // maximum 20 locations per function iteration
   $limit = 20;