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-rw-r--r--components/script/dom/bindings/codegen/CodegenRust.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index fa6c0475000..86e2ee1fd34 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -419,7 +419,8 @@ def typeIsSequenceOrHasSequenceMember(type):
return False
def typeNeedsRooting(type, descriptorProvider):
- return type.isGeckoInterface() and descriptorProvider.getDescriptor(type.name).needsRooting
+ return (type.isGeckoInterface() and
+ descriptorProvider.getDescriptor(type.unroll().inner.identifier.name).needsRooting)
def union_native_type(t):