diff --git a/sway/input/seat.c b/sway/input/seat.c
index 23b7ef768..8bba7d8fc 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -458,7 +458,7 @@ void seat_set_focus_warp(struct sway_seat *seat,
 		new_workspace = container_parent(new_workspace, C_WORKSPACE);
 	}
 
-	if (last_workspace == new_workspace
+	if (last_workspace && last_workspace == new_workspace
 			&& last_workspace->sway_workspace->fullscreen
 			&& !container->sway_view->is_fullscreen) {
 		return;