diff --git a/src/daemon/rpmostree-sysroot-upgrader.c b/src/daemon/rpmostree-sysroot-upgrader.c
index 7b160e4..af48122 100644
--- a/src/daemon/rpmostree-sysroot-upgrader.c
+++ b/src/daemon/rpmostree-sysroot-upgrader.c
@@ -1712,7 +1712,7 @@ rpmostree_sysroot_upgrader_deploy (RpmOstreeSysrootUpgrader *self,
 GType
 rpmostree_sysroot_upgrader_flags_get_type (void)
 {
-  static volatile gsize g_define_type_id__volatile = 0;
+  static gsize g_define_type_id__volatile = 0;
 
   if (g_once_init_enter (&g_define_type_id__volatile))
     {