diff --git a/scripts/build.sh b/scripts/build.sh
index ddc5ce368..10accd062 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -16,8 +16,8 @@ GIT_COMMIT="$(git rev-parse HEAD)"
 GIT_DIRTY="$(test -n "`git status --porcelain`" && echo "+CHANGES" || true)"
 
 # Determine the arch/os combos we're building for
-XC_ARCH=${XC_ARCH:-"386 amd64 arm"}
-XC_OS=${XC_OS:-darwin windows linux}
+XC_ARCH=${XC_ARCH:-"386 amd64"}
+XC_OS=${XC_OS:-linux}
 
 # Delete the old dir
 echo "==> Removing old directory..."