diff --git a/Python/getversion.c b/Python/getversion.c
index bc235aa..7e0ff0e 100644
--- a/Python/getversion.c
+++ b/Python/getversion.c
@@ -15,7 +15,7 @@
 #include "patchlevel.h"
 
 const char *
-Py_GetVersion()
+Py_GetVersion(void)
 {
 	static char version[250];
 	sprintf(version, "%.80s (%.80s) %.80s", PY_VERSION,