diff --git a/src/components/script/dom/bindings/codegen/CodegenRust.py b/src/components/script/dom/bindings/codegen/CodegenRust.py
index 663870781f9..da788982e10 100644
--- a/src/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/src/components/script/dom/bindings/codegen/CodegenRust.py
@@ -3607,7 +3607,7 @@ if expando.is_not_null() {
 return 1;"""
 
     def definition_body(self):
-        return CGGeneric(self.getBody())
+        return CGIndenter(CGGeneric(self.getBody()))
 
 class CGDOMJSProxyHandler_get(CGAbstractExternMethod):
     def __init__(self, descriptor):