diff --git a/Utilities/cmxmlrpc/linklist.h b/Utilities/cmxmlrpc/linklist.h
index f6f264129..b07be84b5 100644
--- a/Utilities/cmxmlrpc/linklist.h
+++ b/Utilities/cmxmlrpc/linklist.h
@@ -159,7 +159,7 @@ list_remove_tail(struct list_head * const anchorP) {
 
 static __inline__ void *
 list_foreach(struct list_head * const anchorP,
-             void * functionP(struct list_head *, void *),
+             void * functionP(struct list_head * const, void * const),
              void *             const context) {
 
     struct list_head * p;