diff --git a/views/default-mobile.handlebars b/views/default-mobile.handlebars
index 6d524a0ff7..375e60c813 100644
--- a/views/default-mobile.handlebars
+++ b/views/default-mobile.handlebars
@@ -4932,7 +4932,9 @@
                         case 'sessionerror': { p12setConsoleMsg("Session expired", 5000); break; }
                         case 'sessiontimeout': { p12setConsoleMsg("Session timeout", 5000); break; }
                     }
-                } else if (data[0] == '~') { xterm.writeUtf8(data.substring(1)); }
+                } else if (data[0] == '~') {
+                    if (xterm.writeUtf8) { xterm.writeUtf8(data.substring(1)); } else { xterm.write(data.substring(1)); }
+                }
             }
         }