diff --git a/dix/devices.c b/dix/devices.c
index 644ee29a0..05a6b51af 100644
--- a/dix/devices.c
+++ b/dix/devices.c
@@ -539,7 +539,7 @@ InitCoreDevices(void)
  * @return Success or error code on failure.
  */
 int
-InitAndStartDevices(WindowPtr root)
+InitAndStartDevices()
 {
     DeviceIntPtr dev, next;
 
diff --git a/dix/main.c b/dix/main.c
index 5dce3dfd2..42d33091a 100644
--- a/dix/main.c
+++ b/dix/main.c
@@ -412,7 +412,7 @@ int main(int argc, char *argv[], char *envp[])
 
         InitCoreDevices();
 	InitInput(argc, argv);
-	if (InitAndStartDevices(WindowTable[0]) != Success)
+	if (InitAndStartDevices() != Success)
 	    FatalError("failed to initialize core devices");
 
 	dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
diff --git a/include/input.h b/include/input.h
index ec6ac90e1..13902d77e 100644
--- a/include/input.h
+++ b/include/input.h
@@ -231,9 +231,7 @@ extern Bool ActivateDevice(
 extern Bool DisableDevice(
     DeviceIntPtr /*device*/);
 
-extern int InitAndStartDevices(
-    WindowPtr /*root*/);
-
+extern int InitAndStartDevices(void);
 
 extern void CloseDownDevices(void);