diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 10c8f57..55a0dce 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1407,7 +1407,7 @@
 };
 
 DL_EXPORT(void)
-initarray()
+initarray(void)
 {
 	PyObject *m, *d;