diff --git a/packages/runtime-core/src/rendererTemplateRef.ts b/packages/runtime-core/src/rendererTemplateRef.ts
index 740624c917e..1fe432d5019 100644
--- a/packages/runtime-core/src/rendererTemplateRef.ts
+++ b/packages/runtime-core/src/rendererTemplateRef.ts
@@ -107,7 +107,7 @@ export function setRef(
           if (hasOwn(setupState, ref)) {
             setupState[ref] = value
           }
-        } else if (isRef(ref)) {
+        } else if (_isRef) {
           ref.value = value
           if (rawRef.k) refs[rawRef.k] = value
         } else if (__DEV__) {