diff --git a/cpython/Setup.local b/cpython/Setup.local
index a26777b6a..a3fb8e50c 100644
--- a/cpython/Setup.local
+++ b/cpython/Setup.local
@@ -29,6 +29,6 @@ _sha256 sha256module.c
 _sha512 sha512module.c
 _sha3 _sha3/sha3module.c
 _md5 md5module.c
-_blake2 _blake2/blake2module.c _blake2/blake2b_impl.c _blake2/blake2s_impl.c
+_blake2 _blake2/blake2module.c _blake2/blake2b_impl.c ../../host/Python-3.6.4/Modules/_blake2/blake2s_impl.c
 
 #future_builtins future_builtins.c