diff --git a/slock.c b/slock.c
index d2f0886..b0418f0 100644
--- a/slock.c
+++ b/slock.c
@@ -219,8 +219,13 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
 	struct lock *lock;
 	XColor color, dummy;
 	XSetWindowAttributes wa;
+	XTextProperty title;
+	char *name = "slock";
 	Cursor invisible;
 
+	if (XStringListToTextProperty(&name, 1, &title) == 0)
+		die("slock: out of memory\n");
+
 	if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
 		return NULL;
 
@@ -243,6 +248,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
 	                          CopyFromParent,
 	                          DefaultVisual(dpy, lock->screen),
 	                          CWOverrideRedirect | CWBackPixel, &wa);
+	XSetWMName(dpy, lock->win, &title);
 	lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
 	invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
 	                                &color, &color, 0, 0);