diff --git a/include/inputstr.h b/include/inputstr.h
index 6a1d5c9d7..b1f9856ed 100644
--- a/include/inputstr.h
+++ b/include/inputstr.h
@@ -160,7 +160,7 @@ typedef struct _ValuatorClassRec {
     int			  *axisVal;
     int                   lastx, lasty; /* last event recorded, not posted to
                                          * client; see dix/devices.c */
-    int                   dxremaind, dyremaind; /* for acceleration */
+    float                 dxremaind, dyremaind; /* for acceleration */
     CARD8	 	  mode;
 } ValuatorClassRec, *ValuatorClassPtr;