diff --git a/test/unit/connection/test-auth-switch-clear-insecure.js b/test/unit/connection/test-auth-switch-clear-insecure.js
index c054331bb..b8fc20f8e 100644
--- a/test/unit/connection/test-auth-switch-clear-insecure.js
+++ b/test/unit/connection/test-auth-switch-clear-insecure.js
@@ -1,4 +1,5 @@
 var assert     = require('assert');
+var Buffer     = require('safe-buffer').Buffer;
 var common     = require('../../common');
 var connection = common.createConnection({
   port     : common.fakeServerPort,
diff --git a/test/unit/connection/test-auth-switch-clear-secure.js b/test/unit/connection/test-auth-switch-clear-secure.js
index edb247a19..08f420eda 100644
--- a/test/unit/connection/test-auth-switch-clear-secure.js
+++ b/test/unit/connection/test-auth-switch-clear-secure.js
@@ -1,4 +1,5 @@
 var assert     = require('assert');
+var Buffer     = require('safe-buffer').Buffer;
 var common     = require('../../common');
 var connection = common.createConnection({
   port     : common.fakeServerPort,