diff --git a/src/lib.rs b/src/lib.rs
index 5d8d11a..30b33e6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -115,6 +115,7 @@ pub fn functionality_after_trim(
     );
 
     storage.trim(3)?;
+    storage.set_compacted_idx(3)?;
 
     assert_eq!(
         storage.get_log_len()?,