diff --git a/fcst/ft_sess.c b/fcst/ft_sess.c
index 1e212bb0e..e376a037b 100644
--- a/fcst/ft_sess.c
+++ b/fcst/ft_sess.c
@@ -174,7 +174,7 @@ static u32 ft_sess_hash(u32 port_id)
 	return hash_32(port_id, FT_SESS_HASH_BITS);
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 1, 0)
 static inline int __must_check kref_get_unless_zero(struct kref *kref)
 {
         return atomic_add_unless(&kref->refcount, 1, 0);