diff --git a/packages/runtime-core/__tests__/rendererTemplateRef.spec.ts b/packages/runtime-core/__tests__/rendererTemplateRef.spec.ts
index 9196d9cf2d3..ae6c605dd07 100644
--- a/packages/runtime-core/__tests__/rendererTemplateRef.spec.ts
+++ b/packages/runtime-core/__tests__/rendererTemplateRef.spec.ts
@@ -573,8 +573,8 @@ describe('api: template refs', () => {
     render(h(App), root)
 
     expect(
-      'In production mode reactive ref array will not be filled. ' +
-        'Use ref() instead.',
+      'In production mode ref array will not be filled. ' +
+        'Use ref() instead. Ref name: reactiveRef',
     ).toHaveBeenWarned()
   })
 })
diff --git a/packages/runtime-core/src/rendererTemplateRef.ts b/packages/runtime-core/src/rendererTemplateRef.ts
index 5e474877dcd..7ad9a4cde73 100644
--- a/packages/runtime-core/src/rendererTemplateRef.ts
+++ b/packages/runtime-core/src/rendererTemplateRef.ts
@@ -113,8 +113,8 @@ export function setRef(
               if (wrongRefType) {
                 warn(
                   'In production mode ref array will not be filled. ' +
-                    'Use ref() instead. Ref name: ',
-                  ref,
+                    'Use ref() instead. Ref name: ' +
+                    ref,
                 )
               }
               existing.push(refValue)