diff --git a/lib/runtime-core/src/typed_func.rs b/lib/runtime-core/src/typed_func.rs
index 0b29d54ea..b1d1399e9 100644
--- a/lib/runtime-core/src/typed_func.rs
+++ b/lib/runtime-core/src/typed_func.rs
@@ -349,11 +349,6 @@ impl<'a> DynamicFunc<'a> {
             }
         }
 
-        // Disable "fat" closures for possible future changes.
-        if mem::size_of::<F>() != 0 {
-            unimplemented!("DynamicFunc with captured environment is not yet supported");
-        }
-
         let mut builder = TrampolineBufferBuilder::new();
         let ctx: Box<PolymorphicContext> = Box::new(PolymorphicContext {
             arg_types: signature.params().to_vec(),