diff --git a/panda/src/event/asyncFuture.I b/panda/src/event/asyncFuture.I
index 37dca79038..a11fb6b36a 100644
--- a/panda/src/event/asyncFuture.I
+++ b/panda/src/event/asyncFuture.I
@@ -103,6 +103,11 @@ set_result(TypedReferenceCount *result) {
   set_result(result, result);
 }
 
+INLINE void AsyncFuture::
+set_result(TypedWritableReferenceCount *result) {
+  set_result(result, result);
+}
+
 INLINE void AsyncFuture::
 set_result(const EventParameter &result) {
   set_result(result.get_ptr(), result.get_ptr());
diff --git a/panda/src/event/asyncFuture.h b/panda/src/event/asyncFuture.h
index 453384fbb5..cbed94b158 100644
--- a/panda/src/event/asyncFuture.h
+++ b/panda/src/event/asyncFuture.h
@@ -86,6 +86,7 @@ PUBLISHED:
   INLINE void set_result(nullptr_t);
   INLINE void set_result(TypedObject *result);
   INLINE void set_result(TypedReferenceCount *result);
+  INLINE void set_result(TypedWritableReferenceCount *result);
   INLINE void set_result(const EventParameter &result);
 
 public: