diff --git a/dix/getevents.c b/dix/getevents.c
index 1403ccc57..441c20f56 100644
--- a/dix/getevents.c
+++ b/dix/getevents.c
@@ -767,7 +767,7 @@ moveRelative(DeviceIntPtr dev, int *x, int *y, ValuatorMask *mask)
     /* if attached, clip both x and y to the defined limits (usually
      * co-ord space limit). If it is attached, we need x/y to go over the
      * limits to be able to change screens. */
-    if(dev->valuator && IsMaster(dev) || !IsFloating(dev)) {
+    if (dev->valuator && (IsMaster(dev) || !IsFloating(dev))) {
         if (valuator_get_mode(dev, 0) == Absolute)
             clipAxis(dev, 0, x);
         if (valuator_get_mode(dev, 1) == Absolute)