diff --git a/src/modules/Timer.js b/src/modules/Timer.js
index 030b382..6ba10dc 100644
--- a/src/modules/Timer.js
+++ b/src/modules/Timer.js
@@ -116,8 +116,11 @@ export class Timer extends GObject.Object {
         debug.message(manual ? `Time manually set to ${time}.` : `Time changed to ${time}.`);
 
         const isMonitorFullscreen = layoutManager.monitors.some(monitor => monitor.inFullscreen);
-        if (this.#settings.get_boolean('fullscreen-transition') || !isMonitorFullscreen)
-            layoutManager.screenTransition.run();
+        if (this.#settings.get_boolean('fullscreen-transition') || !isMonitorFullscreen) {
+            try {
+                layoutManager.screenTransition.run();
+            } catch {}
+        }
 
         this.notify('time');
     }