diff --git a/docs/03.reference/01.functions/len/_examples.md b/docs/03.reference/01.functions/len/_examples.md
index b59bb562d..2a842ad72 100644
--- a/docs/03.reference/01.functions/len/_examples.md
+++ b/docs/03.reference/01.functions/len/_examples.md
@@ -14,7 +14,7 @@ dump(var=len(st), label="Struct");
 dump(st);
 
 q =query(a:["1,2,3"]);
-dump(var=len(st), label="Query");
+dump(var=len(q), label="Query");
 dump(q);
 ```