diff --git a/docs/posts/ibis-duckdb-geospatial-dev-guru/index.qmd b/docs/posts/ibis-duckdb-geospatial-dev-guru/index.qmd
index 87e9bec3e131f..67a2e35699616 100644
--- a/docs/posts/ibis-duckdb-geospatial-dev-guru/index.qmd
+++ b/docs/posts/ibis-duckdb-geospatial-dev-guru/index.qmd
@@ -176,7 +176,7 @@ The following query shows all the bike trips whose pickup point falls within a
 first_point = biketrip.limit(1)
 
 trips_within_500 = biketrip.filter(
-    _.pickup_point.within(first_point.select(_.pickup_point.buffer(500)).to_array())
+    _.pickup_point.within(first_point.select(_.pickup_point.buffer(500)).as_scalar())
 )
 
 trips_within_500