diff --git a/include/proto/sample.h b/include/proto/sample.h
index e9f9e25..2880d00 100644
--- a/include/proto/sample.h
+++ b/include/proto/sample.h
@@ -30,10 +30,10 @@
 
 struct sample_expr *sample_parse_expr(char **str, int *idx, const char *file, int line, char **err, struct arg_list *al);
 struct sample_conv *find_sample_conv(const char *kw, int len);
-struct sample *sample_process(struct proxy *px, struct stream *l4,
-                               void *l7, unsigned int dir, struct sample_expr *expr,
-                               struct sample *p);
-struct sample *sample_fetch_string(struct proxy *px, struct stream *l4, void *l7,
+struct sample *sample_process(struct proxy *px, struct stream *strm,
+                              unsigned int dir, struct sample_expr *expr,
+                              struct sample *p);
+struct sample *sample_fetch_string(struct proxy *px, struct stream *strm,
                                    unsigned int opt, struct sample_expr *expr);
 void sample_register_fetches(struct sample_fetch_kw_list *psl);
 void sample_register_convs(struct sample_conv_kw_list *psl);