diff --git a/src/indexer/index_writer.rs b/src/indexer/index_writer.rs
index e19852038c..4d4a7fac0e 100644
--- a/src/indexer/index_writer.rs
+++ b/src/indexer/index_writer.rs
@@ -620,7 +620,7 @@ impl IndexWriter {
         for worker_handle in former_workers_join_handle {
             let indexing_worker_result = worker_handle
                 .join()
-                .map_err(|e| TantivyError::ErrorInThread(format!("{e:?}")))?;
+                .map_err(|e| TantivyError::ErrorInThread(e.to_string()))?;
             indexing_worker_result?;
             self.add_indexing_worker()?;
         }