diff --git a/src/hlua.c b/src/hlua.c
index eebbc36..fc638ad 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -2768,7 +2768,7 @@
 	memset(&smp, 0, sizeof(smp));
 
 	/* Run the sample fetch process. */
-	if (!f->process(hsmp->p, hsmp->s, 0, args, &smp, f->kw, f->private)) {
+	if (!f->process(hsmp->p, hsmp->s->sess, hsmp->s, 0, args, &smp, f->kw, f->private)) {
 		if (hsmp->stringsafe)
 			lua_pushstring(L, "");
 		else
@@ -3905,8 +3905,9 @@
  * doesn't allow "yield" functions because the HAProxy engine cannot
  * resume sample-fetches.
  */
-static int hlua_sample_fetch_wrapper(struct proxy *px, struct stream *s,
-                                     unsigned int opt, const struct arg *arg_p,
+static int hlua_sample_fetch_wrapper(struct proxy *px, struct session *sess,
+                                     struct stream *s, unsigned int opt,
+                                     const struct arg *arg_p,
                                      struct sample *smp, const char *kw, void *private)
 {
 	struct hlua_function *fcn = (struct hlua_function *)private;