diff --git a/arrow/src/util/pretty.rs b/arrow/src/util/pretty.rs
index 01b006a202ec..ac7caa8ac39a 100644
--- a/arrow/src/util/pretty.rs
+++ b/arrow/src/util/pretty.rs
@@ -290,7 +290,7 @@ mod tests {
         let array = Arc::new(builder.finish());
 
         let batch = RecordBatch::try_new(schema, vec![array])?;
-        let table = pretty_format_batches(&[batch])?;
+        let table = pretty_format_batches(&[batch])?.to_string();
         let expected = vec![
             "+-----------+",
             "| d1        |",