diff --git a/lib/gfx/gx.hpp b/lib/gfx/gx.hpp
index ba4a170..7213e11 100644
--- a/lib/gfx/gx.hpp
+++ b/lib/gfx/gx.hpp
@@ -14,6 +14,7 @@
 #include <bitset>
 #include <memory>
 #include <array>
+#include <cfloat>
 
 #define M_PIF 3.14159265358979323846f