diff --git a/Documentation/typo3/fluid/latest/Form.rst b/Documentation/typo3/fluid/latest/Form.rst
index 5f3b222..d022dbd 100644
--- a/Documentation/typo3/fluid/latest/Form.rst
+++ b/Documentation/typo3/fluid/latest/Form.rst
@@ -111,7 +111,7 @@ The following arguments are available for `<f:form>`:
     :default: `array ()`
     :required: false
 
-    Arguments
+    Arguments (do not use reserved keywords "action", "controller" or "format" if not referring to these internal variables specifically)
 
 .. _typo3-fluid-form-controller_argument:
 
diff --git a/Documentation/typo3/fluid/latest/Link/Action.rst b/Documentation/typo3/fluid/latest/Link/Action.rst
index d223686..3f0dc9d 100644
--- a/Documentation/typo3/fluid/latest/Link/Action.rst
+++ b/Documentation/typo3/fluid/latest/Link/Action.rst
@@ -335,4 +335,4 @@ The following arguments are available for `<f:link.action>`:
     :type: mixed
     :required: false
 
-    Arguments for the controller action, associative array
+    Arguments for the controller action, associative array (do not use reserved keywords "action", "controller" or "format" if not referring to these internal variables specifically)
diff --git a/Documentation/typo3/fluid/latest/Uri/Action.rst b/Documentation/typo3/fluid/latest/Uri/Action.rst
index ac4b872..9cac812 100644
--- a/Documentation/typo3/fluid/latest/Uri/Action.rst
+++ b/Documentation/typo3/fluid/latest/Uri/Action.rst
@@ -64,7 +64,7 @@ The following arguments are available for `<f:uri.action>`:
     :default: `array ()`
     :required: false
 
-    Arguments
+    Arguments (do not use reserved keywords "action", "controller" or "format" if not referring to these internal variables specifically)
 
 .. _typo3-fluid-uri-action-controller_argument: