diff --git a/base/base_tests/string_utils_test.cpp b/base/base_tests/string_utils_test.cpp
index 9761630949..fbd72d5879 100644
--- a/base/base_tests/string_utils_test.cpp
+++ b/base/base_tests/string_utils_test.cpp
@@ -345,3 +345,10 @@ UNIT_TEST(UniString_Less)
   strings::UniString s7 = strings::MakeUniString("Tiste");
   TEST(s0 < s7, ());
 }
+
+UNIT_TEST(UniStringToUtf8)
+{
+  char const utf8Text[] = "У нас исходники хранятся в Utf8!";
+  strings::UniString uniS = strings::MakeUniString(utf8Text);
+  TEST_EQUAL(string(utf8Text), strings::ToUtf8(uniS), ());
+}
diff --git a/base/string_utils.hpp b/base/string_utils.hpp
index 60a53f6aa6..fd6b26551b 100644
--- a/base/string_utils.hpp
+++ b/base/string_utils.hpp
@@ -31,6 +31,13 @@ inline UniString MakeUniString(string const & utf8s)
   return result;
 }
 
+inline string ToUtf8(UniString const & s)
+{
+  string result;
+  utf8::unchecked::utf32to8(s.begin(), s.end(), back_inserter(result));
+  return result;
+}
+
 template <typename DelimFuncT, typename UniCharIterT = UniString::const_iterator>
 class TokenizeIterator
 {