diff --git a/test/parallel/test-tls-interleave.js b/test/parallel/test-tls-interleave.js
index d704a35e6881df..c82d7140fce887 100644
--- a/test/parallel/test-tls-interleave.js
+++ b/test/parallel/test-tls-interleave.js
@@ -26,15 +26,13 @@ if (!common.hasCrypto)
   common.skip('missing crypto');
 
 const assert = require('assert');
-
 const tls = require('tls');
 
-const fs = require('fs');
+const fixtures = require('../common/fixtures');
 
-const dir = common.fixturesDir;
-const options = { key: fs.readFileSync(`${dir}/test_key.pem`),
-                  cert: fs.readFileSync(`${dir}/test_cert.pem`),
-                  ca: [ fs.readFileSync(`${dir}/test_ca.pem`) ] };
+const options = { key: fixtures.readSync('test_key.pem'),
+                  cert: fixtures.readSync('test_cert.pem'),
+                  ca: [ fixtures.readSync('test_ca.pem') ] };
 
 const writes = [
   'some server data',
diff --git a/test/parallel/test-tls-invoke-queued.js b/test/parallel/test-tls-invoke-queued.js
index b1027dd943386c..578ee4cbfd76f2 100644
--- a/test/parallel/test-tls-invoke-queued.js
+++ b/test/parallel/test-tls-invoke-queued.js
@@ -26,14 +26,15 @@ if (!common.hasCrypto)
   common.skip('missing crypto');
 
 const assert = require('assert');
-const fs = require('fs');
 const tls = require('tls');
 
+const fixtures = require('../common/fixtures');
+
 let received = '';
 
 const server = tls.createServer({
-  key: fs.readFileSync(`${common.fixturesDir}/keys/agent1-key.pem`),
-  cert: fs.readFileSync(`${common.fixturesDir}/keys/agent1-cert.pem`)
+  key: fixtures.readKey('agent1-key.pem'),
+  cert: fixtures.readKey('agent1-cert.pem')
 }, common.mustCall(function(c) {
   c._write('hello ', null, common.mustCall(function() {
     c._write('world!', null, common.mustCall(function() {