diff --git a/CHANGELOG.md b/CHANGELOG.md
index 692a2cce..45b4b087 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.6.1] - Unreleased
+
+## Bug Fixes
+
+- [#473](https://github.com/ClementTsang/bottom/pull/473): Fix missing string creation for memory usage in collapsed entries.
+
 ## [0.6.0] - 2021-05-09
 
 ## Features
diff --git a/src/data_conversion.rs b/src/data_conversion.rs
index c0f8529e..1efc6db4 100644
--- a/src/data_conversion.rs
+++ b/src/data_conversion.rs
@@ -1202,6 +1202,8 @@ pub fn tree_process_data(
                             p.tw_f64 as u64,
                         );
 
+                        p.mem_usage_str = get_binary_bytes(p.mem_usage_bytes);
+
                         p.read_per_sec = disk_io_strings.0;
                         p.write_per_sec = disk_io_strings.1;
                         p.total_read = disk_io_strings.2;