diff --git a/circle.yml b/circle.yml
index cec6813..a22783c 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,11 +1,11 @@
 machine:
   node:
-    version: 5
+    version: 8
 test:
   pre:
     - npm link
   override:
     - npm test
-    - bms-renderer fixtures/cut.bms /tmp/cut.wav
+    - bms-renderer fixtures/cut.bms $CIRCLE_ARTIFACTS/cut.wav
   post:
     - ./mkdist
diff --git a/getNotes.js b/getNotes.js
index 3b0f9d2..9f24a93 100644
--- a/getNotes.js
+++ b/getNotes.js
@@ -80,7 +80,7 @@ const getNotes = Promise.coroutine(function* (filepath) {
   function find(k) {
     var wav = notechart.keysounds[k.toLowerCase()]
     if (!wav) return null
-    wav = path.resolve(filepath, '..', wav)
+    wav = path.normalize(path.resolve(filepath, '..', wav)).replace(/[\/\\¥]/g, path.sep)
     if (fs.existsSync(wav)) return wav
     wav = wav.replace(/\.\w\w\w$/, '.wav')
     if (fs.existsSync(wav)) return wav