diff --git a/Utilities/cmxmlrpc/CMakeLists.txt b/Utilities/cmxmlrpc/CMakeLists.txt
index d9d460ad9..cef60aa38 100644
--- a/Utilities/cmxmlrpc/CMakeLists.txt
+++ b/Utilities/cmxmlrpc/CMakeLists.txt
@@ -5,6 +5,9 @@ INCLUDE_REGULAR_EXPRESSION("^.*$")
 # Include all the necessary files for macros
 SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake")
 
+OPTION(HAVE_UNICODE_WCHAR "Enable Unicode Support" YES)
+MARK_AS_ADVANCED(HAVE_UNICODE_WCHAR)
+
 # Check if header file exists and add it to the list.
 SET(CURRENT_INCLUDES)
 INCLUDE (CheckIncludeFiles)
diff --git a/Utilities/cmxmlrpc/xmlrpc_config.h.in b/Utilities/cmxmlrpc/xmlrpc_config.h.in
index 39bb9049d..179baf3ef 100644
--- a/Utilities/cmxmlrpc/xmlrpc_config.h.in
+++ b/Utilities/cmxmlrpc/xmlrpc_config.h.in
@@ -26,7 +26,7 @@
 
 #define ATTR_UNUSED @ATTR_UNUSED@
 
-#define HAVE_UNICODE_WCHAR @HAVE_UNICODE_WCHAR_DEFINE@
+#define HAVE_UNICODE_WCHAR @HAVE_UNICODE_WCHAR@
 
 #define DIRECTORY_SEPARATOR "@DIRECTORY_SEPARATOR@"