diff --git a/tests/ref_cell_test/src/main.rs b/tests/ref_cell_test/src/main.rs
index 455242de..97eb8982 100644
--- a/tests/ref_cell_test/src/main.rs
+++ b/tests/ref_cell_test/src/main.rs
@@ -1,3 +1,4 @@
+use std::rc::Rc;
 use ref_cell::*;
 
 fn main() {