diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 6b5b50f..8f9dbec 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -3,6 +3,7 @@
 #
 config XFRM
        bool
+       select CRYPTO
        depends on NET
 
 config XFRM_USER