diff --git a/lib/coffee-script/lexer.js b/lib/coffee-script/lexer.js
index bab43089..0f97eab4 100644
--- a/lib/coffee-script/lexer.js
+++ b/lib/coffee-script/lexer.js
@@ -275,7 +275,7 @@
       var body, flags, flagsOffset, heregex, plusToken, prev, re, tag, token, tokens, value, _i, _len, _ref2, _ref3, _ref4;
       heregex = match[0], body = match[1], flags = match[2];
       if (0 > body.indexOf('#{')) {
-        re = body.replace(HEREGEX_OMIT, '$1$2').replace(/\//g, '\\/');
+        re = this.escapeLines(body.replace(HEREGEX_OMIT, '$1$2').replace(/\//g, '\\/'), true);
         if (re.match(/^\*/)) {
           this.error('regular expressions cannot begin with `*`');
         }
@@ -860,7 +860,7 @@
 
   HEREGEX = /^\/{3}((?:\\?[\s\S])+?)\/{3}([imgy]{0,4})(?!\w)/;
 
-  HEREGEX_OMIT = /((?:\\\\)+)|\\([^\n\S]|\/)|\s+(?:#.*)?/g;
+  HEREGEX_OMIT = /((?:\\\\)+)|\\(\s|\/)|\s+(?:#.*)?/g;
 
   MULTILINER = /\n/g;
 
diff --git a/src/lexer.coffee b/src/lexer.coffee
index 4371b3cd..ed995a19 100644
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -255,7 +255,7 @@ exports.Lexer = class Lexer
   heregexToken: (match) ->
     [heregex, body, flags] = match
     if 0 > body.indexOf '#{'
-      re = body.replace(HEREGEX_OMIT, '$1$2').replace(/\//g, '\\/')
+      re = @escapeLines body.replace(HEREGEX_OMIT, '$1$2').replace(/\//g, '\\/'), yes
       if re.match /^\*/ then @error 'regular expressions cannot begin with `*`'
       @token 'REGEX', "/#{ re or '(?:)' }/#{flags}", 0, heregex.length
       return heregex.length
@@ -810,7 +810,7 @@ HEREGEX      = /// ^ /{3} ((?:\\?[\s\S])+?) /{3} ([imgy]{0,4}) (?!\w) ///
 
 HEREGEX_OMIT = ///
     ((?:\\\\)+)     # consume (and preserve) an even number of backslashes
-  | \\([^\n\S]|/)   # preserve escaped spaces and "de-escape" slashes
+  | \\(\s|/)        # preserve escaped whitespace and "de-escape" slashes
   | \s+(?:#.*)?     # remove whitespace and comments
 ///g
 
diff --git a/test/regexps.coffee b/test/regexps.coffee
index 3511709f..ff4f32b3 100644
--- a/test/regexps.coffee
+++ b/test/regexps.coffee
@@ -72,3 +72,8 @@ test "#2238: don't escape already escaped slashes", ->
 test "escaped slashes don't close heregex", ->
   eq /// \/// ///.source, /\/\/\//.source
   eq /// \\\////.source, /\\\//.source
+
+test "escaped linebreaks", ->
+  eq  /// \n\
+      \
+      ///.source, /\n\n\n/.source