diff --git a/doc/classes/AnimationNodeStateMachine.xml b/doc/classes/AnimationNodeStateMachine.xml
index 0a1a7df2f44..1c961105405 100644
--- a/doc/classes/AnimationNodeStateMachine.xml
+++ b/doc/classes/AnimationNodeStateMachine.xml
@@ -143,6 +143,7 @@
 			<param index="0" name="name" type="StringName" />
 			<param index="1" name="node" type="AnimationNode" />
 			<description>
+				Replaces the given animation node with a new animation node.
 			</description>
 		</method>
 		<method name="set_graph_offset">