diff --git a/napi.h b/napi.h
index 0e5c1dc22..fa31b8207 100644
--- a/napi.h
+++ b/napi.h
@@ -1794,7 +1794,7 @@ class CallbackInfo {
   Value This() const;
   void* Data() const;
   void SetData(void* data);
-  operator napi_callback_info() const;
+  explicit operator napi_callback_info() const;
 
  private:
   const size_t _staticArgCount = 6;