diff --git a/client.c b/client.c
index fd91af5..434a93b 100644
--- a/client.c
+++ b/client.c
@@ -191,7 +191,7 @@ killclient(Arg *arg)
 {
 	if(!sel)
 		return;
-	if(sel->proto & WM_PROTOCOL_DELWIN)
+	if(sel->proto & PROTODELWIN)
 		sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
 	else
 		XKillClient(dpy, sel->win);
diff --git a/dwm.h b/dwm.h
index 9b34210..0ed778c 100644
--- a/dwm.h
+++ b/dwm.h
@@ -9,7 +9,7 @@
 /* mask shorthands, used in event.c and client.c */
 #define BUTTONMASK		(ButtonPressMask | ButtonReleaseMask)
 #define MOUSEMASK		(BUTTONMASK | PointerMotionMask)
-#define WM_PROTOCOL_DELWIN	1
+#define PROTODELWIN		1
 
 typedef union Arg Arg;
 typedef struct Client Client;
diff --git a/main.c b/main.c
index 0e94e2c..f09307b 100644
--- a/main.c
+++ b/main.c
@@ -111,7 +111,7 @@ getproto(Window w)
 	}
 	for(i = 0; i < res; i++) {
 		if(protocols[i] == wmatom[WMDelete])
-			protos |= WM_PROTOCOL_DELWIN;
+			protos |= PROTODELWIN;
 	}
 	free((char *) protocols);
 	return protos;