diff --git a/dix/screenint_priv.h b/dix/screenint_priv.h
index 2d98d9ba9..87880e664 100644
--- a/dix/screenint_priv.h
+++ b/dix/screenint_priv.h
@@ -20,9 +20,6 @@ void RemoveGPUScreen(ScreenPtr pScreen);
 void AttachUnboundGPU(ScreenPtr pScreen, ScreenPtr newScreen);
 void DetachUnboundGPU(ScreenPtr unbound);
 
-void AttachOutputGPU(ScreenPtr pScreen, ScreenPtr newScreen);
-void DetachOutputGPU(ScreenPtr output);
-
 void AttachOffloadGPU(ScreenPtr pScreen, ScreenPtr newScreen);
 void DetachOffloadGPU(ScreenPtr slave);
 
diff --git a/include/screenint.h b/include/screenint.h
index e136f31cf..fc313042d 100644
--- a/include/screenint.h
+++ b/include/screenint.h
@@ -53,6 +53,10 @@ typedef struct _PixmapFormat *PixmapFormatPtr;
 typedef struct _Visual *VisualPtr;
 typedef struct _Depth *DepthPtr;
 typedef struct _Screen *ScreenPtr;
+
+extern _X_EXPORT void AttachOutputGPU(ScreenPtr pScreen, ScreenPtr newScreen);
+extern _X_EXPORT void DetachOutputGPU(ScreenPtr output);
+
 typedef struct _ColormapRec *ColormapPtr;
 
 #endif                          /* SCREENINT_H */