diff --git a/src/ui/fullscreen.ts b/src/ui/fullscreen.ts
index 86cfa1c13..8838c1339 100644
--- a/src/ui/fullscreen.ts
+++ b/src/ui/fullscreen.ts
@@ -6,15 +6,7 @@ export class Fullscreen {
 		if (isFullscreen) {
 			button.classList.add('fullscreenMode');
 		}
-
-		document.addEventListener('keydown', (event) => {
-			if (event.key === 'F11') {
-				event.preventDefault();
-				this.toggle();
-			} else if (event.shiftKey && event.key === 'F') {
-				this.toggle();
-			}
-		});
+		this.preventEscExitFullscreen();
 	}
 
 	toggle() {
@@ -34,6 +26,14 @@ export class Fullscreen {
 			document.getElementById('AncientBeast').requestFullscreen();
 		}
 	}
+
+	private preventEscExitFullscreen() {
+		document.addEventListener('keydown', (event) => {
+			if (event.key === 'Escape' && isAppInNativeFullscreenMode()) {
+				event.preventDefault();
+			}
+		});
+	}
 }
 
 /**