diff --git a/include/proto/sample.h b/include/proto/sample.h
index a5696f6..3043662 100644
--- a/include/proto/sample.h
+++ b/include/proto/sample.h
@@ -26,7 +26,7 @@
 #include <types/sample.h>
 #include <types/stick_table.h>
 
-struct sample_expr *sample_parse_expr(char **str, int *idx, char *err, int err_size);
+struct sample_expr *sample_parse_expr(char **str, int *idx, char *err, int err_size, struct arg_list *al);
 struct sample *sample_process(struct proxy *px, struct session *l4,
                                void *l7, unsigned int dir, struct sample_expr *expr,
                                struct sample *p);
@@ -37,5 +37,6 @@
 const char *sample_src_names(unsigned int use);
 const char *sample_ckp_names(unsigned int use);
 struct sample_fetch *find_sample_fetch(const char *kw, int len);
+int smp_resolve_args(struct proxy *p);
 
 #endif /* _PROTO_SAMPLE_H */