diff --git a/Lib/test/test_poplib.py b/Lib/test/test_poplib.py
index 88656e1c4db820a..869f9431b928bb6 100644
--- a/Lib/test/test_poplib.py
+++ b/Lib/test/test_poplib.py
@@ -29,7 +29,7 @@
     import ssl
 
     SUPPORTS_SSL = True
-    CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "certadata", "keycert3.pem")
+    CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "certdata", "keycert3.pem")
     CAFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "certdata", "pycacert.pem")
 
 requires_ssl = skipUnless(SUPPORTS_SSL, 'SSL not supported')