diff --git a/doc/src/molecule.rst b/doc/src/molecule.rst
index 86f373795c..05821e6076 100644
--- a/doc/src/molecule.rst
+++ b/doc/src/molecule.rst
@@ -376,6 +376,8 @@ not listed, the default diameter of each atom in the molecule is 1.0.
 
 ----------
 
+..versionadded:: TBD
+
 *Dipoles* section:
 
 * one line per atom