Filter name is singular

docsite/rst/playbooks_variables.rst

@@ -172,7 +172,7 @@ The variable value will be used as is, but the template evaluation will raise an
 Defaulting Undefined Variables
 ------------------------------
 
-Jinja2 provides a useful 'defaults' filter, that is often a better approach to failing if a variable is not defined.
+Jinja2 provides a useful 'default' filter, that is often a better approach to failing if a variable is not defined.
 
     {{ some_variable | default(5) }}