diff --git a/include/types/sample.h b/include/types/sample.h
index 07b12f3d9..117b06019 100644
--- a/include/types/sample.h
+++ b/include/types/sample.h
@@ -252,6 +252,7 @@ struct sample {
 	struct proxy *px;
 	struct session *sess;
 	struct stream *strm;
+	unsigned int opt; /* fetch options (SMP_OPT_*) */
 };
 
 /* Used to store sample constant */
diff --git a/src/hlua.c b/src/hlua.c
index d45cac985..262163035 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -2773,6 +2773,7 @@ __LJMP static int hlua_run_sample_fetch(lua_State *L)
 	smp.px = hsmp->p;
 	smp.sess = hsmp->s->sess;
 	smp.strm = hsmp->s;
+	smp.opt = 0;
 	if (!f->process(0, args, &smp, f->kw, f->private)) {
 		if (hsmp->stringsafe)
 			lua_pushstring(L, "");
@@ -2894,6 +2895,7 @@ __LJMP static int hlua_run_sample_conv(lua_State *L)
 	smp.px = hsmp->p;
 	smp.sess = hsmp->s->sess;
 	smp.strm = hsmp->s;
+	smp.opt = 0;
 	if (!conv->process(args, &smp, conv->private)) {
 		if (hsmp->stringsafe)
 			lua_pushstring(L, "");
diff --git a/src/sample.c b/src/sample.c
index 8cc2234cc..353d6bbc2 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -1036,6 +1036,7 @@ struct sample *sample_process(struct proxy *px, struct session *sess,
 	p->px   = px;
 	p->sess = sess;
 	p->strm = strm;
+	p->opt  = opt;
 	if (!expr->fetch->process(opt, expr->arg_p, p, expr->fetch->kw, expr->fetch->private))
 		return NULL;