diff --git a/tox.ini b/tox.ini
index 486cfea..bcfe7dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -215,4 +215,4 @@ format = "${cyan}%(path)s${reset}:${yellow_bold}%(row)d${reset}:${green_bold}%(c
 #: -- RSTCHECK CONFIG ------------------------------------------------------------------
 # TODO: 06.06.2020: move config to pyproject.toml when supported
 [rstcheck]
-ignore_messages = (Duplicate implicit target name: "(bugfixes|new features|backwards incompatible changes|deprecations \(removal in next major release\)|documentation|miscellaneous)"\.)
+ignore_messages = (Duplicate implicit target name: "(bugfixes|new features|breaking changes|backwards incompatible changes|deprecations \(removal in next major release\)|documentation|miscellaneous)"\.)