diff --git a/lib/constructs/interface.js b/lib/constructs/interface.js
index 30656063..a8bda9c2 100644
--- a/lib/constructs/interface.js
+++ b/lib/constructs/interface.js
@@ -477,10 +477,10 @@ class Interface {
               return internal.target[implSymbol][utils.asyncIteratorReturn](this, value);
             };
 
-            const returnPromise = internal.ongoingPromise ?
+            internal.ongoingPromise = internal.ongoingPromise ?
               internal.ongoingPromise.then(returnSteps, returnSteps) :
               returnSteps();
-            return returnPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
+            return internal.ongoingPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
           }
         `;
       }
diff --git a/test/__snapshots__/test.js.snap b/test/__snapshots__/test.js.snap
index ffa057db..fadf089d 100644
--- a/test/__snapshots__/test.js.snap
+++ b/test/__snapshots__/test.js.snap
@@ -1254,10 +1254,10 @@ exports.install = (globalObject, globalNames) => {
         return internal.target[implSymbol][utils.asyncIteratorReturn](this, value);
       };
 
-      const returnPromise = internal.ongoingPromise
+      internal.ongoingPromise = internal.ongoingPromise
         ? internal.ongoingPromise.then(returnSteps, returnSteps)
         : returnSteps();
-      return returnPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
+      return internal.ongoingPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
     }
   });
 
@@ -12630,10 +12630,10 @@ exports.install = (globalObject, globalNames) => {
         return internal.target[implSymbol][utils.asyncIteratorReturn](this, value);
       };
 
-      const returnPromise = internal.ongoingPromise
+      internal.ongoingPromise = internal.ongoingPromise
         ? internal.ongoingPromise.then(returnSteps, returnSteps)
         : returnSteps();
-      return returnPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
+      return internal.ongoingPromise.then(() => newObjectInRealm(globalObject, { value, done: true }));
     }
   });