diff --git a/lib/coffee-script/lexer.js b/lib/coffee-script/lexer.js
index 456cf0fa..f7c6998a 100644
--- a/lib/coffee-script/lexer.js
+++ b/lib/coffee-script/lexer.js
@@ -217,6 +217,7 @@
         return 0;
       }
       this.token('JS', (script = match[0]).slice(1, -1));
+      this.line += count(script, '\n');
       return script.length;
     };
 
diff --git a/src/lexer.coffee b/src/lexer.coffee
index 2531f28c..e0a1f19d 100644
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -197,6 +197,7 @@ exports.Lexer = class Lexer
   jsToken: ->
     return 0 unless @chunk.charAt(0) is '`' and match = JSTOKEN.exec @chunk
     @token 'JS', (script = match[0])[1...-1]
+    @line += count script, '\n'
     script.length
 
   # Matches regular expression literals. Lexing regular expressions is difficult