diff --git a/index.html b/index.html
index 90b81bf..c6062da 100644
--- a/index.html
+++ b/index.html
@@ -457,7 +457,7 @@
 				case 40:
 					//  alert('Down key');
 					break;
-				case 13:
+				case 70:
 					toggleFullScreen();
 					break;
 			}