diff --git a/.npmignore b/.npmignore
index 2275be4..48139da 100644
--- a/.npmignore
+++ b/.npmignore
@@ -12,7 +12,6 @@ rollup*
 .babelrc.js
 
 #development
-/build
 /sandbox
 
 #demo
diff --git a/src/api.factory.test.js b/__tests__/api.factory.test.js
similarity index 99%
rename from src/api.factory.test.js
rename to __tests__/api.factory.test.js
index 1f0ab45..687be83 100644
--- a/src/api.factory.test.js
+++ b/__tests__/api.factory.test.js
@@ -1,5 +1,5 @@
-import ElManagement from './distanceFromFactory.js';
-import {Api} from './api.factory.js';
+import ElManagement from '../src/distanceFromFactory.js';
+import {Api} from '../src/api.factory.js';
 let container = document.createElement('div');
 let getElManagementIns, ins, buttonElement, containerElement, tablistElement;
 beforeAll(() => {
diff --git a/package.json b/package.json
index db6b8cd..4c14dc9 100644
--- a/package.json
+++ b/package.json
@@ -61,9 +61,9 @@
   "files": [
     "dist",
     "lib",
-    "!*.test.js",
-    "!*.test.js.snap",
-    "index.d.ts"
+    "src",
+    "index.d.ts",
+    "__tests__"
   ],
   "keywords": [
     "tabs",