diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
index dcd48db832f7..8636dd93c511 100644
--- a/lib/matplotlib/backends/_backend_tk.py
+++ b/lib/matplotlib/backends/_backend_tk.py
@@ -1037,4 +1037,6 @@ def trigger_manager_draw(manager):
 
     @staticmethod
     def mainloop():
-        Tk.mainloop()
+        managers = Gcf.get_all_fig_managers()
+        if managers:
+            managers[0].window.mainloop()