diff --git a/hw/xfree86/common/xf86DGA.c b/hw/xfree86/common/xf86DGA.c
index d3c057747..28fffc1d5 100644
--- a/hw/xfree86/common/xf86DGA.c
+++ b/hw/xfree86/common/xf86DGA.c
@@ -1210,6 +1210,9 @@ DGAHandleEvent(int screen_num, InternalEvent *ev, DeviceIntPtr device)
     if (!pScreenPriv)
 	return;
 
+    if (!IsMaster(device))
+	return;
+
     switch (event->subtype) {
     case KeyPress:
     case KeyRelease: