diff --git a/mm/share_pool.c b/mm/share_pool.c
index 8b186484143441912d09bd5a521e2eec9a186552..c6dcae92f67b59fcf2d5b315f35a3c49bef62acf 100644
--- a/mm/share_pool.c
+++ b/mm/share_pool.c
@@ -80,7 +80,7 @@ static int __read_mostly enable_mdc_default_group;
 static const int mdc_default_group_id = 1;
 
 /* share the uva to the whole group */
-static int __read_mostly enable_share_k2u_spg;
+static int __read_mostly enable_share_k2u_spg = 1;
 
 /* access control mode */
 int sysctl_ac_mode = AC_NONE;