diff --git a/docs/docsite/rst/user_guide/playbooks_tests.rst b/docs/docsite/rst/user_guide/playbooks_tests.rst
index 8d641c907a0..83be5fe6647 100644
--- a/docs/docsite/rst/user_guide/playbooks_tests.rst
+++ b/docs/docsite/rst/user_guide/playbooks_tests.rst
@@ -88,8 +88,8 @@ be used.  The default is ``False``, but this setting as ``True`` uses more stric
 
 .. _math_tests:
 
-Group theory tests
-``````````````````
+Set theory tests
+````````````````
 
 .. versionadded:: 2.1