diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index 199ec0c28ce..bb85fac6533 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -4986,7 +4986,8 @@ class CGDescriptor(CGThing):
             cgThings.append(CGWrapMethod(descriptor))
 
         if not descriptor.interface.isCallback():
-            cgThings.append(CGIDLInterface(descriptor))
+            if descriptor.concrete or descriptor.hasDescendants():
+                cgThings.append(CGIDLInterface(descriptor))
             cgThings.append(CGInterfaceTrait(descriptor))
             if descriptor.weakReferenceable:
                 cgThings.append(CGWeakReferenceableTrait(descriptor))
diff --git a/components/script/dom/bindings/codegen/Configuration.py b/components/script/dom/bindings/codegen/Configuration.py
index d0af7e37929..58958b61dab 100644
--- a/components/script/dom/bindings/codegen/Configuration.py
+++ b/components/script/dom/bindings/codegen/Configuration.py
@@ -180,7 +180,7 @@ class Descriptor(DescriptorProvider):
         # If we're concrete, we need to crawl our ancestor interfaces and mark
         # them as having a concrete descendant.
         self.concrete = (not self.interface.isCallback() and
-                         desc.get('concrete', True))
+                         not self.interface.getExtendedAttribute("Abstract"))
         self.hasUnforgeableMembers = (self.concrete and
                                       any(MemberIsUnforgeable(m, self) for m in
                                           self.interface.members))