diff --git a/drush b/drush
index 01d29459d4..0e0de2363c 100755
--- a/drush
+++ b/drush
@@ -31,4 +31,4 @@ then
   export XDEBUG_MODE=off
 fi
 
-"$DRUSH_PHP" "$@"
+exec "$DRUSH_PHP" "$@"