diff --git a/package.json b/package.json
index 13c8364be..6ef44a549 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "hooker": "~0.2.3",
     "jshint": "~2.5.0",
     "mocha": "~1.21.4",
-    "separated-coverage": "~2.0.5",
+    "separated-coverage": "~2.1.0",
     "sinon": "~1.10.0",
     "xml2js": "~0.4.2"
   },
@@ -59,7 +59,13 @@
       "-s",
       "lib/**/*.js",
       "-t",
-      "test/**/*.js"
+      "test/**/*.js",
+      "-S",
+      "relative",
+      "-O",
+      "sources=lib",
+      "-O",
+      "tests=test"
     ]
   },
   "scripts": {