diff --git a/include/octree.h b/include/octree.h
index 8774b88..2fa82b6 100644
--- a/include/octree.h
+++ b/include/octree.h
@@ -7,7 +7,7 @@
 constexpr int max_contained_types = 16;
 constexpr int max_octree_depth = 2;
 
-constexpr auto child_pattern = {
+constexpr std::array child_pattern = {
     glm::vec3(+1, -1, -1),
     glm::vec3(+1, -1, +1),
     glm::vec3(+1, +1, -1),