diff --git a/doc/src/compute_count_type.rst b/doc/src/compute_count_type.rst
index b92fe2f2fb..73e9d50f73 100644
--- a/doc/src/compute_count_type.rst
+++ b/doc/src/compute_count_type.rst
@@ -25,6 +25,8 @@ Examples
 Description
 """""""""""
 
+.. versionadded:: TBD
+
 Define a computation that counts the current number of atoms for each
 atom type.  Or the number of bonds (angles, dihedrals, impropers) for
 each bond (angle, dihedral, improper) type.