diff --git a/libdm/libdm-timestamp.c b/libdm/libdm-timestamp.c
index 7690ccb9d..fe006d58f 100644
--- a/libdm/libdm-timestamp.c
+++ b/libdm/libdm-timestamp.c
@@ -54,7 +54,7 @@ struct dm_timestamp *dm_timestamp_alloc(void)
 {
 	struct dm_timestamp *ts = NULL;
 
-	if (!(ts = dm_malloc(sizeof(*ts))))
+	if (!(ts = dm_zalloc(sizeof(*ts))))
 		stack;
 
 	return ts;