diff --git a/include/cista/containers/rtree.h b/include/cista/containers/rtree.h
index fd98e9be..e767b327 100644
--- a/include/cista/containers/rtree.h
+++ b/include/cista/containers/rtree.h
@@ -631,7 +631,7 @@ struct rtree {
       return;
     }
 
-    size_t h = 0;
+    uint32_t h = 0;
     h = path_hint_[depth];
     rect crect;
     if (h < delete_node.count_) {