diff --git a/panda/src/tinydisplay/tinyXGraphicsWindow.cxx b/panda/src/tinydisplay/tinyXGraphicsWindow.cxx
index c168379465..788d48ef48 100644
--- a/panda/src/tinydisplay/tinyXGraphicsWindow.cxx
+++ b/panda/src/tinydisplay/tinyXGraphicsWindow.cxx
@@ -337,6 +337,7 @@ process_events() {
       break;
 
     case FocusOut:
+      _input_devices[0].focus_lost();
       properties.set_foreground(false);
       system_changed_properties(properties);
       break;
diff --git a/panda/src/x11display/x11GraphicsWindow.cxx b/panda/src/x11display/x11GraphicsWindow.cxx
index 4b48be65cb..c59ca1d907 100644
--- a/panda/src/x11display/x11GraphicsWindow.cxx
+++ b/panda/src/x11display/x11GraphicsWindow.cxx
@@ -388,6 +388,7 @@ process_events() {
       break;
 
     case FocusOut:
+      _input_devices[0].focus_lost();
       properties.set_foreground(false);
       system_changed_properties(properties);
       break;