             )
             promises.push q.nfcall(
               fs.readFile,
-              resultPath + ".map"
+              resultPath + ".map",
+              "utf-8"
             ).then(
               (map) ->
                 sourcemap = JSON.parse map

          promises = []
          files.forEach (file) ->
            promises.push q.nfcall(
              fs.readFile, file
            ).then(
              (data) ->
                expect(

          promises = []
          promises.push q.nfcall(
            fs.readFile,
            "./tests/results/imports/main.css",
            "utf-8"
          ).then(
            (data) -> expect(
              removeMapFile(data.toString "utf-8").trim()
