diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index a3b01fb28a92cbba2325feab4b8529d7f24637ef..ab27a92a27cfa8fd5d7da97b9ef8b4bc2399c22e 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -1361,6 +1361,10 @@ static int lxcContainerMountAllFS(virDomainDefPtr vmDef,
             STREQ(vmDef->fss[i]->dst, "/"))
             continue;
 
+        if (lxcContainerUnmountSubtree(vmDef->fss[i]->dst,
+                                       false) < 0)
+            return -1;
+
         if (lxcContainerMountFS(vmDef->fss[i], dstprefix, sec_mount_options) < 0)
             return -1;
     }