diff --git a/shellinabox/vt100.jspp b/shellinabox/vt100.jspp
index e5f31ab..fcfb42e 100755
--- a/shellinabox/vt100.jspp
+++ b/shellinabox/vt100.jspp
@@ -2729,6 +2729,8 @@ VT100.prototype.handleKey = function(event) {
       case 123: /* F12          */ ch = '\u001B[24~';                   break;
       case 144: /* Num Lock     */                                      return;
       case 145: /* Scroll Lock  */                                      return;
+      case 163: /* # for FF15   */ ch = this.applyModifiers(35, event); break;
+      case 173: /* - for FF15   */ ch = this.applyModifiers(45, event); break;
       case 186: /* ;            */ ch = this.applyModifiers(59, event); break;
       case 187: /* =            */ ch = this.applyModifiers(61, event); break;
       case 188: /* ,            */ ch = this.applyModifiers(44, event); break;
@@ -2873,6 +2875,9 @@ VT100.prototype.fixEvent = function(event) {
     case 109: /* - -> _ */ u = 45; s =  95; break;
     case 111: /* / -> ? */ u = 47; s =  63; break;
 
+    case 163: /* # -> ~ FF15 */ u = 96; s =  126; break;
+    case 173: /* - -> _ FF15 */ u = 45; s =  95;  break;
+
     case 186: /* ; -> : */ u = 59; s =  58; break;
     case 187: /* = -> + */ u = 61; s =  43; break;
     case 188: /* , -> < */ u = 44; s =  60; break;