diff --git a/docs/builtin/round.md b/docs/builtin/round.md
index b21336db..b967b6b2 100644
--- a/docs/builtin/round.md
+++ b/docs/builtin/round.md
@@ -27,6 +27,8 @@ Python round() built-in function
 # 2
 >>> round(2.9)
 # 3
+>>> round(2/3, ndigits=3)
+# 0.667
 ```
 
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