diff --git a/core/src/types/scheme.rs b/core/src/types/scheme.rs
index f70f6e1236e..c0da5219b82 100644
--- a/core/src/types/scheme.rs
+++ b/core/src/types/scheme.rs
@@ -22,8 +22,6 @@ use std::str::FromStr;
 
 use crate::Error;
 
-use super::Builder;
-
 /// Services that OpenDAL supports
 ///
 /// # Notes