diff --git a/runtime.sh b/runtime.sh
index d1501b7..4e54485 100644
--- a/runtime.sh
+++ b/runtime.sh
@@ -116,7 +116,7 @@ initialize_session() {
 # created, the session already exists, and we'll need to specifically switch
 # to it here.
 finalize_and_go_to_session() {
-  tmux kill-window -t "$session:99" 2>/dev/null
+  tmux kill-window -t "$session:99" 2>/dev/null || true
   if [[ "$(tmuxifier-current-session)" != "$session" ]]; then
     __go_to_session
   fi