diff --git a/boxtree/geo_lookup.py b/boxtree/geo_lookup.py
index a241fb8289d81ae2ceb2b7446cd48b90526c3bc9..7d56fcc541dce81ccdec82a5feb47d1342b17fe9 100644
--- a/boxtree/geo_lookup.py
+++ b/boxtree/geo_lookup.py
@@ -97,7 +97,7 @@ void generate(LIST_ARG_DECL USER_ARG_DECL ball_id_t ball_nr)
         {
             bool is_overlapping;
 
-            ${check_ball_overlap(
+            ${check_l_infty_ball_overlap(
                 "is_overlapping", "child_box_id", "ball_radius", "ball_center")}
 
             if (is_overlapping)