diff --git a/elixir.spec b/elixir.spec
index 9d7b09b..230b5b8 100644
--- a/elixir.spec
+++ b/elixir.spec
@@ -34,9 +34,11 @@ rm lib/elixir/test/elixir/io/ansi_test.exs
 sed -i '/IO.ANSI/d' lib/elixir/test/doc_test.exs
 
 %build
-LANG="en_US.UTF-8";  make %{?_smp_mflags}
+export LANG="en_US.UTF-8"
+make %{?_smp_mflags}
 
 %check
+export LANG="en_US.UTF-8"
 make test
 
 %install