diff --git a/.npmignore b/.npmignore
index 705cbd3..940ce63 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,4 +1,6 @@
 src
+config
+examples
 tsconfig.json
 tslint.json
 .travis.yml
diff --git a/config/tsconfig-module.json b/config/tsconfig.module.json
similarity index 100%
rename from config/tsconfig-module.json
rename to config/tsconfig.module.json
diff --git a/package.json b/package.json
index f3695be..950c50c 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "license": "MIT",
   "scripts": {
     "info": "npm-scripts-info",
-    "build": "trash build && tsc -p tsconfig.json && tsc -p config/tsconfig-module.json",
+    "build": "trash build && tsc -p tsconfig.json && tsc -p config/tsconfig.module.json",
     "lint": "tslint src/**/*.ts",
     "unit": "yarn build && nyc ava",
     "check-coverage": "nyc check-coverage --lines 100 --functions 100 --branches 100",
diff --git a/tsconfig.json b/tsconfig.json
index b8798c8..cf89c9f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,14 +7,13 @@
     "moduleResolution": "node",
     "module": "commonjs",
     "declaration": true,
-    "strictNullChecks": true,
     "importHelpers": true,
     "inlineSourceMap": true,
     "listFiles": false,
     "traceResolution": false,
     "pretty": true,
     "lib" : [
-      "ES6"
+      "es6"
     ],
     "types" : [
       "node"