diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 24b88ea1..4a1bf0e8 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -689,7 +689,8 @@ using ::wcslen;
 
 // Determines whether the system compiler uses UTF-16 for encoding wide strings.
 #define GTEST_WIDE_STRING_USES_UTF16_ \
-    (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX)
+    (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || \
+     GTEST_OS_AIX || GTEST_OS_OS2)
 
 // Determines whether test results can be streamed to a socket.
 #if GTEST_OS_LINUX