diff --git a/test/pummel/test-tls-session-timeout.js b/test/pummel/test-tls-session-timeout.js
index 49c38102fc5c5c..338e7dd16b3dce 100644
--- a/test/pummel/test-tls-session-timeout.js
+++ b/test/pummel/test-tls-session-timeout.js
@@ -50,8 +50,8 @@ function doTest() {
 
   const SESSION_TIMEOUT = 1;
 
-  const key = fixtures.path('agent.key');
-  const cert = fixtures.path('agent.crt');
+  const key = fixtures.readSync('agent.key');
+  const cert = fixtures.readSync('agent.crt');
   const options = {
     key: key,
     cert: cert,