diff --git a/src/test/ssl/t/SSLServer.pm b/src/test/ssl/t/SSLServer.pm
index 1e392b8fbf6..0843495546c 100644
--- a/src/test/ssl/t/SSLServer.pm
+++ b/src/test/ssl/t/SSLServer.pm
@@ -42,6 +42,12 @@ our @EXPORT = qw(
   test_connect_ok
 );
 
+# Force SSL tests nodes to begin in TCP mode. They won't work in Unix Socket
+# mode and this way they will find a port to run on in a more robust way.
+# Use an INIT block so it runs after the BEGIN block in TestLib.pm.
+
+INIT { $TestLib::use_unix_sockets = 0; }
+
 # Define a couple of helper functions to test connecting to the server.
 
 # The first argument is a base connection string to use for connection.