diff --git a/docs/ai/reference_extai.rst b/docs/ai/reference_extai.rst
index b7d11d61234..bff430d2820 100644
--- a/docs/ai/reference_extai.rst
+++ b/docs/ai/reference_extai.rst
@@ -25,7 +25,7 @@ The AI extension can be configured using ``configure session`` or ``configure cu
 .. code-block:: edgeql
 
     configure current branch
-    set ext::ai::Config::indexer_naptime := <duration>'0:00:30';
+    set ext::ai::Config::indexer_naptime := <duration>'PT30S';
 
 Configuration Properties
 ------------------------