diff --git a/test/test_receive_buffer.cpp b/test/test_receive_buffer.cpp
index fd41f7440..5a48d7530 100644
--- a/test/test_receive_buffer.cpp
+++ b/test/test_receive_buffer.cpp
@@ -215,11 +215,11 @@ TORRENT_TEST(receive_buffer_watermark)
 {
 	receive_buffer b;
 	b.reset(0x4000);
-	b.reserve(35000000);
-	b.received(35000000);
+	b.reserve(33500000);
+	b.received(33500000);
 	b.normalize();
 
-	TEST_EQUAL(b.watermark(), 35000000);
+	TEST_EQUAL(b.watermark(), 33500000);
 }
 
 #if !defined(TORRENT_DISABLE_ENCRYPTION) && !defined(TORRENT_DISABLE_EXTENSIONS)
diff --git a/test/test_utp.cpp b/test/test_utp.cpp
index 0709a05a9..754df9b15 100644
--- a/test/test_utp.cpp
+++ b/test/test_utp.cpp
@@ -84,7 +84,13 @@ void test_transfer()
 	torrent_handle tor1;
 	torrent_handle tor2;
 
+	ec.clear();
 	create_directory("./tmp1_utp", ec);
+	if (ec)
+	{
+		std::printf("ERROR: failed to create test directory \"./tmp1_utp\": (%d) %s\n"
+			, ec.value(), ec.message().c_str());
+	}
 	std::ofstream file("./tmp1_utp/temporary");
 	std::shared_ptr<torrent_info> t = ::create_torrent(&file, "temporary", 128 * 1024, 6, false);
 	file.close();