diff --git a/include/proto/vars.h b/include/proto/vars.h
index 9299b9f..de0987d 100644
--- a/include/proto/vars.h
+++ b/include/proto/vars.h
@@ -4,11 +4,11 @@
 #include <types/vars.h>
 
 void vars_init(struct vars *vars, enum vars_scope scope);
-void vars_prune(struct vars *vars, struct stream *strm);
+void vars_prune(struct vars *vars, struct session *sess, struct stream *strm);
 void vars_prune_per_sess(struct vars *vars);
-int vars_get_by_name(const char *name, size_t len, struct stream *strm, struct sample *smp);
-void vars_set_by_name(const char *name, size_t len, struct stream *strm, struct sample *smp);
-int vars_get_by_desc(const struct var_desc *var_desc, struct stream *strm, struct sample *smp);
+int vars_get_by_name(const char *name, size_t len, struct sample *smp);
+void vars_set_by_name(const char *name, size_t len, struct sample *smp);
+int vars_get_by_desc(const struct var_desc *var_desc, struct sample *smp);
 int vars_check_arg(struct arg *arg, char **err);
 
 #endif