diff --git a/lib/planner/write-plans-to-disk.js b/lib/planner/write-plans-to-disk.js
index 2af1d9ea..324947af 100644
--- a/lib/planner/write-plans-to-disk.js
+++ b/lib/planner/write-plans-to-disk.js
@@ -3,15 +3,14 @@
 const fs = require('fs');
 const path = require('path');
 const configHandler = require('../util/config/config-handler.js');
+const crypto = require('crypto');
 
 module.exports = function writePlansToDisk(plans) {
-  let date = Date.now();
-  let fileCount = 1;
   const outputPath = configHandler.get('outputPath');
   for (let plan of plans) {
-    let filePath = path.resolve(outputPath,
-        `${date}-simulato-${fileCount++}_${plans.length}.json`);
-    // fs.writeFileSync(filePath, JSON.stringify(plan.testCase));
+    const sha256 = (x) => crypto.createHash('sha256').update(x, 'utf8').digest('hex');
+    let testName = `simulato`+`--${sha256(plan.toString())}.json`;
+    let filePath = path.resolve(outputPath, testName);
     fs.writeFileSync(filePath, JSON.stringify(plan));
   }
   console.log(`Generated and wrote ${plans.length} test(s) to disk`);
diff --git a/test/unit/lib/planner/write-plan-to-disk-tests.js b/test/unit/lib/planner/write-plan-to-disk-tests.js
index 9ababf15..2ad903a5 100644
--- a/test/unit/lib/planner/write-plan-to-disk-tests.js
+++ b/test/unit/lib/planner/write-plan-to-disk-tests.js
@@ -14,7 +14,7 @@ describe('lib/planner/write-plans-to-disk.js', function() {
   beforeEach(function() {
     mockery.enable({useCleanCache: true});
     mockery.registerAllowable('../../../../lib/planner/write-plans-to-disk.js');
-
+    let crypto;
     fs = {
       writeFileSync: sinon.stub(),
     };
@@ -24,12 +24,22 @@ describe('lib/planner/write-plans-to-disk.js', function() {
     configHandler = {
       get: sinon.stub(),
     };
+    crypto = {
+      createHash: sinon.stub().returns({
+        update: sinon.stub().returns({
+          digest: sinon.stub().returns(
+              'hashedPlan'
+          ),
+        }),
+      }),
+    };
 
     clock = sinon.useFakeTimers(12345);
     sinon.spy(console, 'log');
 
     mockery.registerMock('fs', fs);
     mockery.registerMock('path', path);
+    mockery.registerMock('crypto', crypto);
     mockery.registerMock('../util/config/config-handler.js', configHandler);
 
     writePlansToDisk = require('../../../../lib/planner/write-plans-to-disk.js');
@@ -53,14 +63,14 @@ describe('lib/planner/write-plans-to-disk.js', function() {
 
   describe('for each plan of the passed in plans', function() {
     it('should call path.resolve with the outputPath and the constructed file name', function() {
-      let plans = ['plan1', 'plan2'];
+      let plans = ['plan1'];
+
       configHandler.get.returns('outputPath/');
 
       writePlansToDisk(plans);
 
       expect(path.resolve.args).to.deep.equal([
-        [`outputPath/`, '12345-simulato-1_2.json'],
-        [`outputPath/`, '12345-simulato-2_2.json'],
+        [`outputPath/`, 'simulato--hashedPlan.json'],
       ]);
     });