diff --git a/interfaces/native/innerkits/event/include/input_event.h b/interfaces/native/innerkits/event/include/input_event.h
index d012d0e05123a955e5740e8b0ed89f0e3b63076f..d148f9e3b1f8059ccb16b88591986a85850b8cde 100644
--- a/interfaces/native/innerkits/event/include/input_event.h
+++ b/interfaces/native/innerkits/event/include/input_event.h
@@ -137,6 +137,8 @@ public:
      */
     static constexpr uint32_t EVENT_FLAG_KEYBOARD_EXIT_FOCUS = 0x00004000;
 
+    static constexpr uint32_t EVENT_FLAG_GESTURE_SUPPLEMENT = 0x00008000;
+
     /**
      * Indicates an unknown input source type. It is usually used as the initial value.
      *
@@ -565,4 +567,4 @@ private:
 };
 } // namespace MMI
 } // namespace OHOS
-#endif // INPUT_EVENT_H
\ No newline at end of file
+#endif // INPUT_EVENT_H