diff --git a/include/sqltypes.h b/include/sqltypes.h
index 4c45de7e989..70315c271c4 100644
--- a/include/sqltypes.h
+++ b/include/sqltypes.h
@@ -241,9 +241,6 @@ typedef struct  tagSQLGUID
 
 typedef SQLULEN BOOKMARK;
 
-#define SQL_WCHAR             (-8)
-#define SQL_C_WCHAR            SQL_WCHAR
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/sqlucode.h b/include/sqlucode.h
index c87348cd8b5..7e1fb677cce 100644
--- a/include/sqlucode.h
+++ b/include/sqlucode.h
@@ -27,6 +27,11 @@
 extern "C" {
 #endif
 
+#define SQL_WCHAR             (-8)
+#define SQL_C_WCHAR           SQL_WCHAR
+#define SQL_WVARCHAR          (-9)
+#define SQL_WLONGVARCHAR      (-10)
+
 SQLRETURN WINAPI SQLConnectW(SQLHDBC ConnectionHandle,
            SQLWCHAR *ServerName, SQLSMALLINT NameLength1,
            SQLWCHAR *UserName, SQLSMALLINT NameLength2,