diff --git a/doc/changelog.rst b/doc/changelog.rst
index ed49140440fef71ba3ade96f637dbed1e2bf540f..2fd0653230967e25621eb0ae056148ddccb89a58 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -10,6 +10,7 @@ unreleased
     - fix :issue:`8` regarding azimuthal integration with pyFAI and hexagonal DSSC pixel splitting by providing an example notebook :mr:`174`
     - fix :issue:`46` with a change in dask groupby mean behavior :mr:`174`
     - fix :issue:`47` SLURM script not using the correct kernel :mr:`176`
+    - fix :issue:`51` make sure that BAM units are in ps :mr:`183`
 
 - **Improvements**