diff --git a/src/ui/fullscreen.ts b/src/ui/fullscreen.ts
index 0c4eb27ec..98e055862 100644
--- a/src/ui/fullscreen.ts
+++ b/src/ui/fullscreen.ts
@@ -6,6 +6,7 @@ export class Fullscreen {
 		if (isFullscreen) {
 			button.classList.add('fullscreenMode');
 		}
+		this.button.addEventListener('click', this.toggle.bind(this));
 	}
 
 	toggle() {
@@ -23,8 +24,21 @@ export class Fullscreen {
 				.querySelectorAll('.fullscreen__title')
 				.forEach((el) => (el.textContent = 'Contract'));
 			document.getElementById('AncientBeast').requestFullscreen();
+			this.triggerF11();
 		}
 	}
+
+	triggerF11() {
+		const event = new KeyboardEvent('keydown', {
+			key: 'F11',
+			code: 'F11',
+			keyCode: 122,
+			which: 122,
+			bubbles: true,
+			cancelable: true,
+		});
+		document.dispatchEvent(event);
+	}
 }
 
 /**