diff --git a/test/ssl-tests/ssltests_base.pm b/test/ssl-tests/ssltests_base.pm
index 05aab97e13dcb217a2640f0907a70e057cc690d4..387043e3759b05709d6db8c5f6228f3fbfb5f205 100644
--- a/test/ssl-tests/ssltests_base.pm
+++ b/test/ssl-tests/ssltests_base.pm
@@ -4,14 +4,16 @@
 
 package ssltests;
 
+my $dir_sep = $^O ne "VMS" ? "/" : "";
+
 our %base_server = (
-    "Certificate" => "\${ENV::TEST_CERTS_DIR}/servercert.pem",
-    "PrivateKey"  => "\${ENV::TEST_CERTS_DIR}/serverkey.pem",
+    "Certificate" => "\${ENV::TEST_CERTS_DIR}${dir_sep}servercert.pem",
+    "PrivateKey"  => "\${ENV::TEST_CERTS_DIR}${dir_sep}serverkey.pem",
     "CipherString" => "DEFAULT",
 );
 
 our %base_client = (
-    "VerifyCAFile" => "\${ENV::TEST_CERTS_DIR}/rootcert.pem",
+    "VerifyCAFile" => "\${ENV::TEST_CERTS_DIR}${dir_sep}rootcert.pem",
     "VerifyMode" => "Peer",
     "CipherString" => "DEFAULT",
 );