diff --git a/Mac/Modules/ColorPickermodule.c b/Mac/Modules/ColorPickermodule.c
index e7d00451df9..12a632f82a5 100644
--- a/Mac/Modules/ColorPickermodule.c
+++ b/Mac/Modules/ColorPickermodule.c
@@ -37,9 +37,7 @@ static char cp_GetColor__doc__[] =
 ;
 
 static PyObject *
-cp_GetColor(self, args)
-	PyObject *self;	/* Not used */
-	PyObject *args;
+cp_GetColor(PyObject *self, PyObject *args)
 {
 	RGBColor inColor, outColor;
 	Boolean ok;
@@ -68,9 +66,7 @@ static char cp_module_documentation[] =
 ""
 ;
 
-void initColorPicker();
-
-void initColorPicker()
+void initColorPicker(void)
 {
 	PyObject *m;