diff --git a/core/src/avm2/object.rs b/core/src/avm2/object.rs
index f30619cab..1c18969d2 100644
--- a/core/src/avm2/object.rs
+++ b/core/src/avm2/object.rs
@@ -3,7 +3,7 @@
 use crate::avm2::activation::Activation;
 use crate::avm2::array::ArrayStorage;
 use crate::avm2::bytearray::ByteArrayStorage;
-use crate::avm2::class::{AllocatorFn, Class};
+use crate::avm2::class::Class;
 use crate::avm2::domain::Domain;
 use crate::avm2::events::{DispatchList, Event};
 use crate::avm2::function::Executable;
@@ -1094,11 +1094,6 @@ pub trait TObject<'gc>: 'gc + Collect + Debug + Into<Object<'gc>> + Clone + Copy
         None
     }
 
-    /// Get this class's instance allocator.
-    fn instance_allocator(self) -> Option<AllocatorFn> {
-        None
-    }
-
     /// Get this object's `Executable`, if it has one.
     fn as_executable(&self) -> Option<Executable<'gc>> {
         None
diff --git a/core/src/avm2/object/class_object.rs b/core/src/avm2/object/class_object.rs
index 226725a99..526634f84 100644
--- a/core/src/avm2/object/class_object.rs
+++ b/core/src/avm2/object/class_object.rs
@@ -106,7 +106,11 @@ impl<'gc> ClassObject<'gc> {
         let instance_allocator = class
             .read()
             .instance_allocator()
-            .or_else(|| superclass_object.and_then(|c| c.instance_allocator()))
+            .or_else(||
+                superclass_object
+                .and_then(|c| c.as_class_object_really())
+                .and_then(|c| c.instance_allocator())
+            )
             .unwrap_or(scriptobject_allocator);
 
         //TODO: Class prototypes are *not* instances of their class and should
@@ -191,7 +195,11 @@ impl<'gc> ClassObject<'gc> {
         let instance_allocator = class
             .read()
             .instance_allocator()
-            .or_else(|| superclass_object.and_then(|c| c.instance_allocator()))
+            .or_else(||
+                superclass_object
+                .and_then(|c| c.as_class_object_really())
+                .and_then(|c| c.instance_allocator())
+            )
             .unwrap_or(scriptobject_allocator);
 
         let constructor = Executable::from_method(class.read().instance_init(), scope, None, mc);
@@ -347,6 +355,10 @@ impl<'gc> ClassObject<'gc> {
     pub fn as_class_params(self) -> Option<Option<Object<'gc>>> {
         self.0.read().params
     }
+
+    fn instance_allocator(self) -> Option<AllocatorFn> {
+        Some(self.0.read().instance_allocator.0)
+    }
 }
 
 impl<'gc> TObject<'gc> for ClassObject<'gc> {
@@ -451,10 +463,6 @@ impl<'gc> TObject<'gc> for ClassObject<'gc> {
         .into())
     }
 
-    fn instance_allocator(self) -> Option<AllocatorFn> {
-        Some(self.0.read().instance_allocator.0)
-    }
-
     fn get_scope(self) -> Option<GcCell<'gc, Scope<'gc>>> {
         self.0.read().scope
     }