diff --git a/guacamole/src/main/webapp/client.xhtml b/guacamole/src/main/webapp/client.xhtml
index 43fbefab0..9178053f4 100644
--- a/guacamole/src/main/webapp/client.xhtml
+++ b/guacamole/src/main/webapp/client.xhtml
@@ -303,7 +303,7 @@
 
             ctrlAltDelete.onclick = function() {
 
-                var KEYSYM_CTRL   = 0xFF03;
+                var KEYSYM_CTRL   = 0xFFE3;
                 var KEYSYM_ALT    = 0xFFE9;
                 var KEYSYM_DELETE = 0xFFFF;