diff --git a/deluge/ui/web/js/ext-extensions/.build b/deluge/ui/web/js/ext-extensions/.build
index 3888cc0c7..7e0b691e1 100644
--- a/deluge/ui/web/js/ext-extensions/.build
+++ b/deluge/ui/web/js/ext-extensions/.build
@@ -13,6 +13,7 @@ add_file "grid/BufferView.js"
 add_file "form/FileUploadField.js"
 add_file "form/RadioGroupFix.js"
 add_file "form/SpinnerField.js"
+add_file "form/SpinnerFieldFix.js"
 add_file "form/SpinnerGroup.js"
 add_file "form/ToggleField.js"
 add_file "JSLoader.js"