diff --git a/dix/input_priv.h b/dix/input_priv.h
index 6e6d711b8..95a61d18d 100644
--- a/dix/input_priv.h
+++ b/dix/input_priv.h
@@ -486,4 +486,13 @@ Bool InputDevIsFloating(DeviceIntPtr dev)
 void NoticeTime(const DeviceIntPtr dev, TimeStamp time)
     _X_ATTRIBUTE_NONNULL_ARG(1);
 
+/*
+ * @brief store event's timestamp as the device's last event time
+ *
+ * @param event     source event
+ * @param dev       device the timestamp is stored for
+ */
+void NoticeEventTime(InternalEvent *ev, DeviceIntPtr dev)
+    _X_ATTRIBUTE_NONNULL_ARG(1,2);
+
 #endif /* _XSERVER_INPUT_PRIV_H */
diff --git a/include/dix.h b/include/dix.h
index 64c292457..6695a7b33 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -225,10 +225,6 @@ SetVendorRelease(int release);
 
 /* events.c */
 
-extern _X_EXPORT void
-NoticeEventTime(InternalEvent *ev,
-                DeviceIntPtr dev);
-
 extern _X_EXPORT TimeStamp
 LastEventTime(int deviceid);