diff --git a/include/osmocom/sim/sim.h b/include/osmocom/sim/sim.h
index 8eb3f11..5440d85 100644
--- a/include/osmocom/sim/sim.h
+++ b/include/osmocom/sim/sim.h
@@ -243,6 +243,9 @@
 osim_file_desc_find_name(struct osim_file_desc *parent, const char *name);
 
 struct osim_file_desc *
+osim_file_desc_find_aid(struct osim_file_desc *parent, const uint8_t *aid, uint8_t aid_len);
+
+struct osim_file_desc *
 osim_file_desc_find_fid(struct osim_file_desc *parent, uint16_t fid);
 
 struct osim_file_desc *