diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 97b223b..f9e3c0f 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -1,4 +1,4 @@
-SUBARCH_CORE := arch/um/sys-i386/
+SUBARCH_CORE := arch/um/sys-i386/ arch/i386/crypto/
 
 TOP_ADDR := $(CONFIG_TOP_ADDR)