diff --git a/device_mapper/all.h b/device_mapper/all.h
index e8b0470fa..663abe870 100644
--- a/device_mapper/all.h
+++ b/device_mapper/all.h
@@ -235,7 +235,7 @@ int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
  *  0: uuid not present
  *  1: listed and dm_active_device will be set for not NULL pointer
  */
-int dm_device_list_find_by_uuid(struct dm_list *devs_list, const char *uuid,
+int dm_device_list_find_by_uuid(const struct dm_list *devs_list, const char *uuid,
 				const struct dm_active_device **dev);
 int dm_device_list_find_by_dev(const struct dm_list *devs_list,
 			       uint32_t major, uint32_t minor,
diff --git a/device_mapper/ioctl/libdm-iface.c b/device_mapper/ioctl/libdm-iface.c
index b2a3c3db5..62fb37ef9 100644
--- a/device_mapper/ioctl/libdm-iface.c
+++ b/device_mapper/ioctl/libdm-iface.c
@@ -917,11 +917,11 @@ int dm_task_get_device_list(struct dm_task *dmt, struct dm_list **devs_list,
 	return 1;
 }
 
-int dm_device_list_find_by_uuid(struct dm_list *devs_list, const char *uuid,
+int dm_device_list_find_by_uuid(const struct dm_list *devs_list, const char *uuid,
 				const struct dm_active_device **dev)
 {
-	struct dm_device_list *devs = (struct dm_device_list *) devs_list;
-	struct dm_active_device *dm_dev;
+	const struct dm_device_list *devs = (const struct dm_device_list *) devs_list;
+	const struct dm_active_device *dm_dev;
 
 	if (devs->uuids &&
 	    (dm_dev = dm_hash_lookup(devs->uuids, uuid))) {