1 files changed, 1 insertions, 1 deletions
diff --git a/src/x11.c b/src/x11.c
index ace1ead..19633e3 100644
--- a/src/x11.c
+++ b/src/x11.c
@@ -2059,7 +2059,7 @@ puglSetTransientParent(PuglView* const view, const PuglNativeView parent)
 
   view->transientParent = parent;
 
-  if (view->impl->win) {
+  if (view->impl->win && view->transientParent) {
     XSetTransientForHint(
       display, view->impl->win, (Window)view->transientParent);
   }