diff --git a/init.lua b/init.lua
index 0230d1d..2858792 100644
--- a/init.lua
+++ b/init.lua
@@ -54,6 +54,8 @@ local files = {
 	"utils",
 	"vec2",
 	"vec3",
+	"bound2",
+	"bound3",
 }
 
 for _, file in ipairs(files) do
diff --git a/modules/bound2.lua b/modules/bound2.lua
index 1990ab9..c3639c8 100644
--- a/modules/bound2.lua
+++ b/modules/bound2.lua
@@ -148,8 +148,8 @@ end
 -- @tparam vec2 point to test
 -- @treturn boolean true if point in bounding box
 function bound2.contains(a, v)
-	return a.min.x <= v.x and a.min.y <= v.y and a.min.z <= v.z
-	   and a.max.x >= v.x and a.max.y >= v.y and a.max.z >= v.z
+	return a.min.x <= v.x and a.min.y <= v.y
+	   and a.max.x >= v.x and a.max.y >= v.y
 end
 
 bound2_mt.__index    = bound2