1 files changed, 1 insertions, 1 deletions
diff --git a/slock.c b/slock.c
index 5ae738c..6c3401f 100644
--- a/slock.c
+++ b/slock.c
@@ -229,7 +229,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
 	XSetWindowAttributes wa;
 	Cursor invisible;
 
-	if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
+	if (dpy == NULL || screen < 0 || !(lock = calloc(1, sizeof(struct lock))))
 		return NULL;
 
 	lock->screen = screen;