diff --git a/src/connection.c b/src/connection.c
index b1d643b..ac098d3 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -1298,7 +1298,7 @@
 
 /* returns 0 on success */
 static int cfg_parse_pp2_never_send_local(char **args, int section_type, struct proxy *curpx,
-                                          struct proxy *defpx, const char *file, int line,
+                                          const struct proxy *defpx, const char *file, int line,
                                           char **err)
 {
 	if (too_many_args(0, args, err, NULL))