diff --git a/src/unittest/test_utilities.cpp b/src/unittest/test_utilities.cpp
index 9678a81eb..4cffc29ef 100644
--- a/src/unittest/test_utilities.cpp
+++ b/src/unittest/test_utilities.cpp
@@ -244,12 +244,11 @@ void TestUtilities::testWrapRows()
 	UASSERT(wrap_rows("12345678",4) == "1234\n5678");
 	// test that wrap_rows doesn't wrap inside multibyte sequences
 	const unsigned char s[] = {
-		0x2f, 0x68, 0x6f, 0x6d, 0x65, 0x2f, 0x72, 0x61, 0x70, 0x74, 0x6f,
-		0x72, 0x2f, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82, 0x2f,
-		0x6d, 0x69, 0x6e, 0x65, 0x74, 0x65, 0x73, 0x74, 0x2f, 0x62, 0x69,
-		0x6e, 0x2f, 0x2e, 0x2e, 0};
+		0x74, 0x65, 0x73, 0x74, 0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81,
+		0xd1, 0x82, 0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82,
+		0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82, 0};
 	std::string str((char *)s);
-	UASSERT(utf8_to_wide(wrap_rows(str, 20)) != L"<invalid UTF-8 string>");
+	UASSERT(utf8_to_wide(wrap_rows(str, 8)) != L"<invalid UTF-8 string>");
 }