diff --git a/scripts/build.sh b/scripts/build.sh
index 18dd211..68d41d3 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -17,7 +17,7 @@ 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:-linux darwin windows freebsd openbsd netbsd solaris}
+XC_OS=${XC_OS:-linux freebsd openbsd netbsd solaris}
 
 GOPATH=${GOPATH:-$(go env GOPATH)}
 case $(uname) in