diff --git a/hw/xfree86/drivers/modesetting/driver.c b/hw/xfree86/drivers/modesetting/driver.c
index 6549ef8e1..bd8576f81 100644
--- a/hw/xfree86/drivers/modesetting/driver.c
+++ b/hw/xfree86/drivers/modesetting/driver.c
@@ -1216,7 +1216,7 @@ PreInit(ScrnInfoPtr pScrn, int flags)
     }
 
     if (xf86ReturnOptValBool(ms->drmmode.Options, OPTION_ATOMIC, FALSE)) {
-        ret = drmSetClientCap(ms->fd, DRM_CLIENT_CAP_ATOMIC, 1);
+        ret = drmSetClientCap(ms->fd, DRM_CLIENT_CAP_ATOMIC, 2);
         ms->atomic_modeset = (ret == 0);
     } else {
         ms->atomic_modeset = FALSE;