diff --git a/src/config.coffee b/src/config.coffee
deleted file mode 100644
index 9267745..0000000
--- a/src/config.coffee
+++ /dev/null
@@ -1,41 +0,0 @@
-module.exports =
-  language: "en"
-
-  # TODO: adapt to osm2vectortiles successor openmaptiles v3)
-  # mapscii.me hosts the last available version, 2016-06-20
-  source: "http://mapscii.me/"
-
-  #source: __dirname+"/../mbtiles/regensburg.mbtiles"
-
-  styleFile: __dirname+"/../styles/dark.json"
-
-  initialZoom: null
-  maxZoom: 18
-  zoomStep: 0.2
-
-  simplifyPolylines: false
-
-  useBraille: true
-
-  # Downloaded files get persisted in ~/.mapscii
-  persistDownloadedTiles: true
-
-  tileRange: 14
-  projectSize: 256
-
-  labelMargin: 5
-
-  layers:
-    housenum_label: margin: 4
-    poi_label: cluster: true, margin: 5
-    place_label: cluster: true
-    state_label: cluster: true
-
-  input: process.stdin
-  output: process.stdout
-
-  headless: false
-
-  delimeter: "\n\r"
-
-  poiMarker: "◉"
\ No newline at end of file
diff --git a/src/config.js b/src/config.js
new file mode 100644
index 0000000..b1af7a3
--- /dev/null
+++ b/src/config.js
@@ -0,0 +1,52 @@
+module.exports = {
+  language: 'en',
+
+  // TODO: adapt to osm2vectortiles successor openmaptiles v3)
+  // mapscii.me hosts the last available version, 2016-06-20
+  source: 'http://mapscii.me/',
+
+  //source: __dirname+"/../mbtiles/regensburg.mbtiles",
+
+  styleFile: __dirname+'/../styles/dark.json',
+
+  initialZoom: null,
+  maxZoom: 18,
+  zoomStep: 0.2,
+
+  simplifyPolylines: false,
+
+  useBraille: true,
+
+  // Downloaded files get persisted in ~/.mapscii
+  persistDownloadedTiles: true,
+
+  tileRange: 14,
+  projectSize: 256,
+
+  labelMargin: 5,
+
+  layers: {
+    housenum_label: {
+        margin: 4
+    },
+    poi_label: {
+      cluster: true,
+      margin: 5,
+    },
+    place_label: {
+        cluster: true,
+    },
+    state_label: {
+        cluster: true,
+    },
+  },
+
+  input: process.stdin,
+  output: process.stdout,
+
+  headless: false,
+
+  delimeter: '\n\r',
+
+  poiMarker: '◉',
+};