diff --git a/src/vueWrapper.ts b/src/vueWrapper.ts
index 10734293f..04b29d20a 100644
--- a/src/vueWrapper.ts
+++ b/src/vueWrapper.ts
@@ -80,12 +80,14 @@ function createVMProxy<T extends ComponentPublicInstance>(
 
 type ResolveComponentEmitKeys<T> = keyof ResolveEmitRecord<T>
 
+type ExtractArgType<T extends Array<any>> = T extends { length: 0 }
+  ? void
+  : T extends { length: 1 }
+  ? T[0]
+  : T
+
 type ExtractEmitType<T> = T extends (...args: infer Args) => any
-  ? Args extends { length: 0 }
-    ? void
-    : Args extends { length: 1 }
-    ? Args[0]
-    : Args
+  ? ExtractArgType<Args>
   : void
 
 type ResolveEmitRecord<T> = ExtractComponentEmits<T> extends infer E