diff --git a/manage.c b/manage.c
index 239e37c..895174f 100755
--- a/manage.c
+++ b/manage.c
@@ -341,7 +341,7 @@ getcmaps(Client *c)
 void
 setlabel(Client *c)
 {
-	char *label, *p;
+	char *label, *p, *lc, i;
 
 	if(c->iconname != 0)
 		label = c->iconname;
@@ -355,9 +355,12 @@ setlabel(Client *c)
 		label = "no label";
 	if((p = index(label, ':')) != 0)
 		*p = '\0';
-  if (sizeof(label) >= 16*sizeof(char)){
-    label[15] = '~';
-  	label[18] = '\0';
+	for (lc = label, i = 0; lc++, i++; *lc != 0){
+		if (i >= 24)
+		{
+		  label[22] = '~';
+		  label[23] = '\0';
+		}
   }
 	c->label = label;
 }