diff --git a/layoutSwitcher.nim b/layoutSwitcher.nim
index 914f814..72add27 100644
--- a/layoutSwitcher.nim
+++ b/layoutSwitcher.nim
@@ -166,4 +166,5 @@ method view(app: AppState): Widget =
 
 brew(appID, gui(App()), icons=[iconsDir], stylesheets=[newStylesheet(gtkCSS)])
 
-joinThread(thread)
+if running(thread):
+  joinThread(thread)