diff --git a/source/release-notes/3.2-reference.txt b/source/release-notes/3.2-reference.txt
index 72a810b1195..a46bae50596 100644
--- a/source/release-notes/3.2-reference.txt
+++ b/source/release-notes/3.2-reference.txt
@@ -2616,7 +2616,7 @@ parameters:
 
       mongod --setParameter diagnosticDataCollectionEnabled=false
 
-.. parameter:: diagnosticDataCollectionDirectorySizeMb
+.. parameter:: diagnosticDataCollectionDirectorySizeMB
 
    .. versionadded:: 3.2
 
@@ -2637,15 +2637,15 @@ parameters:
 
    .. code-block:: sh
 
-      mongod --setParameter diagnosticDataCollectionDirectorySizeMb=200
+      mongod --setParameter diagnosticDataCollectionDirectorySizeMB=200
 
    The minimum value for
-   :parameter:`diagnosticDataCollectionDirectorySizeMb` is ``10``
-   megabytes. :parameter:`diagnosticDataCollectionDirectorySizeMb` must
+   :parameter:`diagnosticDataCollectionDirectorySizeMB` is ``10``
+   megabytes. :parameter:`diagnosticDataCollectionDirectorySizeMB` must
    be greater than maximum diagnostic file size
-   :parameter:`diagnosticDataCollectionFileSizeMb`.
+   :parameter:`diagnosticDataCollectionFileSizeMB`.
 
-.. parameter:: diagnosticDataCollectionFileSizeMb
+.. parameter:: diagnosticDataCollectionFileSizeMB
 
    .. versionadded:: 3.2
 
@@ -2664,10 +2664,10 @@ parameters:
 
    .. code-block:: sh
 
-      mongod --setParameter diagnosticDataCollectionFileSizeMb=20
+      mongod --setParameter diagnosticDataCollectionFileSizeMB=20
 
    The minimum value for
-   :parameter:`diagnosticDataCollectionFileSizeMb` is ``1`` megabyte.
+   :parameter:`diagnosticDataCollectionFileSizeMB` is ``1`` megabyte.
 
 .. parameter:: diagnosticDataCollectionPeriodMillis
 
diff --git a/source/release-notes/3.2.txt b/source/release-notes/3.2.txt
index 74b1e1c3d37..29467a956b2 100644
--- a/source/release-notes/3.2.txt
+++ b/source/release-notes/3.2.txt
@@ -1543,9 +1543,9 @@ MongoDB creates a ``diagnostic.data`` directory under the
 The diagnostic data is stored in files under this directory.
 
 The maximum size of the diagnostic files is configurable with the
-:parameter:`diagnosticDataCollectionFileSizeMb`, and the maximum size
+:parameter:`diagnosticDataCollectionFileSizeMB`, and the maximum size
 of the ``diagnostic.data`` directory is configurable with
-:parameter:`diagnosticDataCollectionDirectorySizeMb`.
+:parameter:`diagnosticDataCollectionDirectorySizeMB`.
 
 The default values for the capture interval and the maximum sizes are
 chosen to provide useful data to MongoDB engineers with minimal impact