diff --git a/src/core/namespace.c b/src/core/namespace.c
index e20c500793..19678e6d57 100644
--- a/src/core/namespace.c
+++ b/src/core/namespace.c
@@ -587,7 +587,7 @@ static int mount_private_dev(MountEntry *m) {
         }
 
         devshm = strjoina(temporary_mount, "/dev/shm");
-        (void) mkdir(devshm, 01777);
+        (void) mkdir(devshm, 0755);
         r = mount("/dev/shm", devshm, NULL, MS_BIND, NULL);
         if (r < 0) {
                 r = -errno;