diff --git a/pool.go b/pool.go
index 2c72834..cb7b50d 100644
--- a/pool.go
+++ b/pool.go
@@ -126,7 +126,7 @@ func (c *PoolClient) FindServer(ctx context.Context, poolname, servername, id st
 	for _, pool := range pools {
 		sl, err := c.ListMembers(ctx, pool)
 		if err != nil {
-			return
+			return nil, err
 		}
 		for _, srv := range sl {
 			if id != "" && srv.ID == id {