--- src/labels.c	2004-04-13 17:24:24.776604127 +0200
+++ src/labels.c.new	2004-04-13 17:36:08.597643469 +0200
@@ -35,10 +35,12 @@
 	if (i == j)
 		return s;
 	i = (gchar *) strchr(i + 1, DIR_SEPARATOR_C);	// second slash
-	*i = '\0';
-	strcat(s, DIR_SEPARATOR_S);
-	strcat(s, "...");
-	strcat(s, buf);
+	if((i-s+1)+5+strlen(buf) <= strlen(s)) { // only modify if new version is shorter
+		*i = '\0';
+		strcat(s, DIR_SEPARATOR_S);
+		strcat(s, "...");
+		strcat(s, buf);
+	}
 	return s;
 }