diff --git a/start_test.sh b/start_test.sh
index 4a1f7fd..75672d6 100755
--- a/start_test.sh
+++ b/start_test.sh
@@ -1,3 +1,8 @@
 set -e
-nix build .#kak-tree -o /tmp/kak-tree -L
-kak -n -E 'source /tmp/kak-tree/share/kak/autoload/plugins/kak-tree/tree.kak ; source kakrc.sample' src/main.rs -e 'set buffer filetype rust'
+if [ "$1" == "--no-build" ] ; then
+    kak -n -E 'source rc/tree.kak ; set-option global tree_cmd "/tmp/kak-tree-bin/bin/kak-tree" ; set-option global tree_config rc/default_config.toml ; source kakrc.sample ; set-option global tree_log "test.log"' src/main.rs -e 'set buffer filetype rust'
+else
+    nix build .#bin -o /tmp/kak-tree-bin -L
+    nix build .#kak-tree -o /tmp/kak-tree -L
+    kak -n -E 'source /tmp/kak-tree/share/kak/autoload/plugins/kak-tree/tree.kak ; source kakrc.sample ; set-option global tree_log "test.log"' src/main.rs -e 'set buffer filetype rust'
+fi