diff --git a/Lib/python/pyinit.swg b/Lib/python/pyinit.swg
index ce08e6edc..510831f20 100644
--- a/Lib/python/pyinit.swg
+++ b/Lib/python/pyinit.swg
@@ -21,7 +21,7 @@ extern "C" {
 
 typedef struct swig_globalvar {   
   char       *name;                  /* Name of global variable */
-  PyObject *(*get_attr)();           /* Return the current value */
+  PyObject *(*get_attr)(void);       /* Return the current value */
   int       (*set_attr)(PyObject *); /* Set the value */
   struct swig_globalvar *next;
 } swig_globalvar;
@@ -77,7 +77,7 @@ swig_varlink_setattr(swig_varlinkobject *v, char *n, PyObject *p) {
 }
 
 SWIGINTERN PyTypeObject*
-swig_varlink_type() {
+swig_varlink_type(void) {
   static char varlink__doc__[] = "Swig var link object";
   static PyTypeObject varlink_type
 #if !defined(__cplusplus)
diff --git a/Lib/python/pyrun.swg b/Lib/python/pyrun.swg
index a0753b043..ea33f5d51 100644
--- a/Lib/python/pyrun.swg
+++ b/Lib/python/pyrun.swg
@@ -152,7 +152,7 @@ PySwigObject_dealloc(PySwigObject *self)
 }
 
 SWIGRUNTIME PyTypeObject*
-PySwigObject_type() {
+PySwigObject_type(void) {
   static char pyswigobject_type__doc__[] = 
     "Swig object carries a C/C++ instance pointer";
   
@@ -339,7 +339,7 @@ PySwigPacked_dealloc(PySwigPacked *self)
 }
 
 SWIGRUNTIME PyTypeObject*
-PySwigPacked_type() {
+PySwigPacked_type(void) {
   static char pyswigpacked_type__doc__[] = 
     "Swig object carries a C/C++ instance pointer";
   static PyTypeObject pyswigpacked_type
diff --git a/Lib/swiginit.swg b/Lib/swiginit.swg
index 469d30224..5c17561a1 100644
--- a/Lib/swiginit.swg
+++ b/Lib/swiginit.swg
@@ -122,7 +122,7 @@ SWIG_InitializeModule(void *clientdata) {
 * SWIG_TypeClientData(type, clientdata) a second time.
 */
 SWIGRUNTIME void
-SWIG_PropagateClientData() {
+SWIG_PropagateClientData(void) {
   size_t i;
   swig_cast_info *equiv;
   static int init_run = 0;