diff --git a/scripts/build.sh b/scripts/build.sh
index 26885ba48..c49b67685 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -23,7 +23,7 @@ fi
 
 # Determine the arch/os combos we're building for
 XC_ARCH=${XC_ARCH:-"386 amd64 arm"}
-XC_OS=${XC_OS:-linux darwin windows}
+XC_OS=${XC_OS:-linux darwin windows freebsd openbsd}
 
 # Install dependencies
 echo "==> Getting dependencies..."