diff --git a/coord.h b/coord.h
index 0bd822d..53b8125 100644
--- a/coord.h
+++ b/coord.h
@@ -8,4 +8,10 @@ struct Coord {
   uint32_t y;
 };
 
+struct Coord3d {
+  uint32_t r;
+  uint32_t g;
+  uint32_t b;
+};
+
 std::ostream& operator<<(std::ostream& os, const Coord& coord);
diff --git a/lut.h b/lut.h
index c2c37ba..d576c09 100644
--- a/lut.h
+++ b/lut.h
@@ -1,12 +1,7 @@
 #pragma once
 
 #include "color.h"
-
-struct Coord3d {
-  uint32_t r;
-  uint32_t g;
-  uint32_t b;
-};
+#include "coord.h"
 
 template <uint32_t R, uint32_t G, uint32_t B>
 class Lut3d : public std::array<std::array<std::array<Color, B>, G>, R> {