diff --git a/Lib/swiginit.swg b/Lib/swiginit.swg
index 42c160483..d160cfaf1 100644
--- a/Lib/swiginit.swg
+++ b/Lib/swiginit.swg
@@ -52,10 +52,11 @@ extern "C" {
 
 
 SWIGRUNTIME void
-SWIG_InitializeModule(void *SWIGUNUSEDPARM(clientdata)) {
+SWIG_InitializeModule(void *clientdata) {
   size_t i;
   swig_module_info *module_head, *iter;
   int found, init;
+  (void *)clientdata;
 
   /* check to see if the circular list has been setup, if not, set it up */
   if (swig_module.next==0) {