diff --git a/lib/js/codemirror.js b/lib/js/codemirror.js
index c98948037..0bdc02524 100644
--- a/lib/js/codemirror.js
+++ b/lib/js/codemirror.js
@@ -67,7 +67,7 @@ CodeMirror.defineMode("lips", function () {
     function isHexNumber (stream) {
         return stream.match(hexMatcher);
     }
-    
+
     function processEscapedSequence(stream, options) {
         var next, escaped = false;
         while ((next = stream.next()) != null) {
@@ -165,7 +165,11 @@ CodeMirror.defineMode("lips", function () {
                         state.mode = "symbol";
                         returnType = SYMBOL;
                     } else if (ch == '#') {
-                        if (stream.eat("|")) {                    // Multi-line comment
+                        if (stream.eat(/\\/)) {
+                            if (stream.match(/[0-9a-f]+/) || stream.match(/./u)) {
+                                returnType = STRING;
+                            }
+                        } else if (stream.eat("|")) {                    // Multi-line comment
                             state.mode = "comment"; // toggle to comment mode
                             returnType = COMMENT;
                         } else if (stream.eat(/[tf]/i)) {            // #t/#f (atom)