diff --git a/Lib/cpointer.i b/Lib/cpointer.i
index a04de3d67..df40c0426 100644
--- a/Lib/cpointer.i
+++ b/Lib/cpointer.i
@@ -120,7 +120,7 @@ static NAME * frompointer(TYPE *t) {
 
 %define %pointer_functions(TYPE,NAME)
 %{
-static TYPE *new_##NAME() { %}
+static TYPE *new_##NAME(void) { %}
 #ifdef __cplusplus
 %{  return new TYPE(); %}
 #else
@@ -155,7 +155,7 @@ static TYPE NAME ##_value(TYPE *obj) {
 }
 %}
 
-TYPE *new_##NAME();
+TYPE *new_##NAME(void);
 TYPE *copy_##NAME(TYPE value);
 void  delete_##NAME(TYPE *obj);
 void  NAME##_assign(TYPE *obj, TYPE value);
diff --git a/Lib/typemaps/cpointer.swg b/Lib/typemaps/cpointer.swg
index 88e8ef242..a5ac07d85 100644
--- a/Lib/typemaps/cpointer.swg
+++ b/Lib/typemaps/cpointer.swg
@@ -105,7 +105,7 @@ typedef struct {
 
 %define %pointer_functions(TYPE,NAME)
 %{
-  static TYPE *new_##NAME() { 
+  static TYPE *new_##NAME(void) {
     return %new_instance(TYPE);
   }
   
@@ -126,7 +126,7 @@ typedef struct {
   }
 %}
 
-TYPE *new_##NAME();
+TYPE *new_##NAME(void);
 TYPE *copy_##NAME(TYPE value);
 void  delete_##NAME(TYPE *obj);
 void  NAME##_assign(TYPE *obj, TYPE value);