diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a9c3678..39f4295f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 #Changelog
 
+###1.0.8
+- Only copy external assets if they do not already exist [mochawesome #76](https://github.com/adamgruber/mochawesome/issues/76)
+
 ###1.0.7
 - Fix an issue where test context could not be viewed if `enableCode` option was `false`. [mochawesome #132](https://github.com/adamgruber/mochawesome/issues/132)
 - Add an icon to indicate when a test has context
diff --git a/lib/main.js b/lib/main.js
index afe534ad..28399560 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -94,9 +94,11 @@ function getAssets() {
  */
 
 function copyAssets(opts) {
-  // Copy the assets to the report location
+  // Copy the assets to the report location if they don't exist
   var assetsDir = path.join(opts.reportDir, 'assets');
-  fs.copySync(externalAssetsDir, assetsDir);
+  if (!fs.existsSync(assetsDir)) {
+    fs.copySync(externalAssetsDir, assetsDir);
+  }
 }
 
 /**
diff --git a/lib/src/main.js b/lib/src/main.js
index 6126f732..7d22507c 100644
--- a/lib/src/main.js
+++ b/lib/src/main.js
@@ -90,9 +90,11 @@ function getAssets() {
  */
 
 function copyAssets(opts) {
-  // Copy the assets to the report location
+  // Copy the assets to the report location if they don't exist
   const assetsDir = path.join(opts.reportDir, 'assets');
-  fs.copySync(externalAssetsDir, assetsDir);
+  if (!fs.existsSync(assetsDir)) {
+    fs.copySync(externalAssetsDir, assetsDir);
+  }
 }
 
 /**
diff --git a/package.json b/package.json
index 15635936..bc9d4e34 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mochawesome-report-generator",
-  "version": "1.0.7",
+  "version": "1.0.8",
   "description": "Generates gorgeous HTML reports from mochawesome reporter.",
   "scripts": {
     "lint": "eslint bin lib src/js src/components/**/*.js src/components/**/*.jsx test/**/*.js test/**/*.jsx",
diff --git a/test/spec/lib/main.test.js b/test/spec/lib/main.test.js
index b8e43768..9c6ab088 100644
--- a/test/spec/lib/main.test.js
+++ b/test/spec/lib/main.test.js
@@ -14,12 +14,14 @@ const outputFileSyncStub = sinon.stub();
 const copySyncStub = sinon.stub();
 const readFileSyncStub = sinon.stub();
 const openerStub = sinon.stub();
+const existsSyncStub = sinon.stub();
 const mareport = proxyquire('../../../lib/src/main', {
   'fs-extra': {
     outputFile: outputFileStub,
     outputFileSync: outputFileSyncStub,
     copySync: copySyncStub,
-    readFileSync: readFileSyncStub
+    readFileSync: readFileSyncStub,
+    existsSync: existsSyncStub
   },
   opener: openerStub
 });
@@ -98,6 +100,12 @@ describe('lib/main', () => {
     expect(copySyncStub.called).to.equal(true);
   });
 
+  it('doesn\'t copy assets if assetsDir already exists', () => {
+    existsSyncStub.returns(true);
+    mareport.createSync(testData, { inlineAssets: false });
+    expect(copySyncStub.called).to.equal(false);
+  });
+
   it('inlines assets', () => {
     mareport.createSync(testData, { inlineAssets: true });
     expect(readFileSyncStub.called).to.equal(true);