diff --git a/miext/sync/misyncfd.c b/miext/sync/misyncfd.c
index 92f3b2294..fecbd0fb9 100644
--- a/miext/sync/misyncfd.c
+++ b/miext/sync/misyncfd.c
@@ -66,7 +66,7 @@ miSyncFDFromFence(DrawablePtr pDraw, SyncFence *pFence)
     return (*priv->funcs.GetFenceFd)(pDraw->pScreen, pFence);
 }
 
-_X_EXPORT Bool miSyncFdScreenInit(ScreenPtr pScreen,
+Bool miSyncFdScreenInit(ScreenPtr pScreen,
                                   const SyncFdScreenFuncsRec *funcs)
 {
     SyncFdScreenPrivatePtr     priv;
diff --git a/miext/sync/misyncshm.c b/miext/sync/misyncshm.c
index 01f82fc00..27bf07db1 100644
--- a/miext/sync/misyncshm.c
+++ b/miext/sync/misyncshm.c
@@ -163,7 +163,7 @@ static const SyncFdScreenFuncsRec miSyncShmScreenFuncs = {
     .GetFenceFd = miSyncShmGetFenceFd
 };
 
-_X_EXPORT Bool miSyncShmScreenInit(ScreenPtr pScreen)
+Bool miSyncShmScreenInit(ScreenPtr pScreen)
 {
     SyncScreenFuncsPtr  funcs;