diff --git a/scripts/crosstool-NG.sh.in b/scripts/crosstool-NG.sh.in
index 2057f26c..c7893ca7 100644
--- a/scripts/crosstool-NG.sh.in
+++ b/scripts/crosstool-NG.sh.in
@@ -578,7 +578,7 @@ if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
             fi
         fi
         if [ ${do_it} -eq 1 ]; then
-            do_${step}
+            ( do_${step} )
             if [ "${CT_STOP}" = "${step}" ]; then
                 do_stop=1
             fi