diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index 357a3ce97..5f5b55147 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -734,6 +734,7 @@ int lvconvert_poll(struct cmd_context *cmd, struct logical_volume *lv,
 	 */
 	char uuid[sizeof(lv->lvid)];
 	char lv_full_name[NAME_LEN];
+	int is_thin, r;
 
 	if (dm_snprintf(lv_full_name, sizeof(lv_full_name), "%s/%s", lv->vg->name, lv->name) < 0) {
 		log_error(INTERNAL_ERROR "Name \"%s/%s\" is too long.", lv->vg->name, lv->name);
@@ -742,14 +743,16 @@ int lvconvert_poll(struct cmd_context *cmd, struct logical_volume *lv,
 
 	memcpy(uuid, &lv->lvid, sizeof(lv->lvid));
 
-	if (lv_is_merging_origin(lv))
-		return poll_daemon(cmd, lv_full_name, uuid, background, 0,
-				   seg_is_thin_volume(find_snapshot(lv)) ?
-				   &_lvconvert_thin_merge_fns : &_lvconvert_merge_fns,
-				   "Merged");
+	if (lv_is_merging_origin(lv)) {
+		is_thin = seg_is_thin_volume(find_snapshot(lv));
+		r = poll_daemon(cmd, lv_full_name, uuid, background, 0,
+				is_thin ? &_lvconvert_thin_merge_fns : &_lvconvert_merge_fns,
+				"Merged");
+	} else
+		r = poll_daemon(cmd, lv_full_name, uuid, background, 0,
+				&_lvconvert_mirror_fns, "Converted");
 
-	return poll_daemon(cmd, lv_full_name, uuid, background, 0,
-			   &_lvconvert_mirror_fns, "Converted");
+	return r;
 }
 
 static int _insert_lvconvert_layer(struct cmd_context *cmd,