diff --git a/dix/dix_priv.h b/dix/dix_priv.h
index 47c18817f..fd6b44c0f 100644
--- a/dix/dix_priv.h
+++ b/dix/dix_priv.h
@@ -255,4 +255,10 @@ extern Bool enableBackingStore;
 /* in generated BuiltInAtoms.c */
 void MakePredeclaredAtoms(void);
 
+/*
+ * @brief mark event ID as critical
+ * @param event the event to add to the critical events bitmap
+ */
+void SetCriticalEvent(int event);
+
 #endif /* _XSERVER_DIX_PRIV_H */
diff --git a/include/dixevents.h b/include/dixevents.h
index 1f2c9426a..af389a122 100644
--- a/include/dixevents.h
+++ b/include/dixevents.h
@@ -26,8 +26,6 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #ifndef DIXEVENTS_H
 #define DIXEVENTS_H
 
-extern _X_EXPORT void SetCriticalEvent(int /* event */ );
-
 extern _X_EXPORT CursorPtr GetSpriteCursor(DeviceIntPtr /*pDev */ );
 
 extern _X_EXPORT int MaybeDeliverEventsToClient(WindowPtr /* pWin */ ,