diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 7465b1f7ad68952c3b58703edba2fa48ebbf082a..8cad821ba30b316af0eb22745ca20f093301c179 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -13,6 +13,8 @@ Changes In Release 1.3.2
   * Fix atom indices generated by CoordGroup::Filter()
   * small tweaks to lDDT output
   * small tweaks to molck
+  * Repaired bio unit parsing from mmCIF file/ PDBizing bio units, before
+    chains with different transformations were ignored
 
 Changes In Release 1.3.1
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