diff --git a/bin/fetch-proxy b/bin/fetch-proxy
index 3156de64e..34ee92a95 100755
--- a/bin/fetch-proxy
+++ b/bin/fetch-proxy
@@ -28,7 +28,11 @@ curl -sLO "$assetbase/$shafile"
 
 tar -zxvf "$pkgfile" >&2
 expected=$(awk '{print $1}' "$shafile")
-computed=$(sha256sum "$pkgfile" | awk '{print $1}')
+if [ $(uname) == "Darwin" ]; then
+  computed=$(openssl dgst -sha256 "$pkgfile" | awk '{print $2}')
+else
+  computed=$(sha256sum "$pkgfile" | awk '{print $1}')
+fi
 if [ "$computed" != "$expected" ]; then
   echo 'sha mismatch' >&2
   exit 1