diff -r 014df3c34b64 dwm.c
--- a/dwm.c	Sat Jun 25 09:07:28 2011 +0100
+++ b/dwm.c	Sun Jun 26 10:22:08 2011 +0600
@@ -42,7 +42,7 @@
 
 /* macros */
 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
-#define CLEANMASK(mask)         (mask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+#define CLEANMASK(mask)         (mask & ~numlockmask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
 #define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
 #define LENGTH(X)               (sizeof X / sizeof X[0])