diff --git a/src/settings.cpp b/src/settings.cpp
index 58bced94031..15a7b9c27c9 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1247,6 +1247,7 @@ void read_settings_xml(pugi::xml_node root)
   // read weight windows from file
   if (check_for_node(root, "weight_windows_file")) {
     weight_windows_file = get_node_value(root, "weight_windows_file");
+    weight_windows_on = true;
   }
 
   // read settings for weight windows value, this will override