diff --git a/include/os.h b/include/os.h
index a68564954..6b8ca2a01 100644
--- a/include/os.h
+++ b/include/os.h
@@ -91,8 +91,6 @@ extern _X_EXPORT void SetCriticalOutputPending(void);
 extern _X_EXPORT int WriteToClient(ClientPtr /*who */ , int /*count */ ,
                                    const void * /*buf */ );
 
-extern _X_EXPORT void NotifyParentProcess(void);
-
 extern _X_EXPORT void CreateWellKnownSockets(void);
 
 extern _X_EXPORT void ResetWellKnownSockets(void);
diff --git a/os/client_priv.h b/os/client_priv.h
index 17cdc3133..9e978be51 100644
--- a/os/client_priv.h
+++ b/os/client_priv.h
@@ -49,6 +49,7 @@ Bool InsertFakeRequest(struct _Client *client, char *data, int count);
 void FlushAllOutput(void);
 void FlushIfCriticalOutputPending(void);
 void ResetOsBuffers(void);
+void NotifyParentProcess(void);
 
 /* exported only for DRI module, but should not be used by external drivers */
 _X_EXPORT void ResetCurrentRequest(struct _Client *client);