diff --git a/test/cowboy_test.erl b/test/cowboy_test.erl
index a8cb364d..1591a5fe 100644
--- a/test/cowboy_test.erl
+++ b/test/cowboy_test.erl
@@ -111,7 +111,7 @@ gun_open(Config, Opts) ->
 	{ok, ConnPid} = gun:open("localhost", config(port, Config), Opts#{
 		retry => 0,
 		transport => config(type, Config),
-		transport_opts => proplists:get_value(transport_opts, Config, []),
+		tls_opts => proplists:get_value(tls_opts, Config, []),
 		protocols => [config(protocol, Config)]
 	}),
 	ConnPid.
diff --git a/test/req_SUITE.erl b/test/req_SUITE.erl
index ac6e4a91..174a38b9 100644
--- a/test/req_SUITE.erl
+++ b/test/req_SUITE.erl
@@ -186,7 +186,7 @@ cert(Config) ->
 do_cert(Config0) ->
 	doc("A client TLS certificate was provided."),
 	{CaCert, Cert, Key} = ct_helper:make_certs(),
-	Config = [{transport_opts, [
+	Config = [{tls_opts, [
 		{cert, Cert},
 		{key, Key},
 		{cacerts, [CaCert]}