diff --git a/setup/so-functions b/setup/so-functions
index ae99d190e..bf3f4d856 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -959,7 +959,7 @@ parse_options() {
 				local proxy
 				proxy=$(echo "$1" | tr -d '"' | awk -F'--turbo=' '{print $2}')
 				proxy_url="http://$proxy"
-				TURBO="$proxy_url"
+				export TURBO="$proxy_url"
 			else
 				echo "turbo is not supported on this install type" >> $setup_log 2>&1
 			fi