diff --git a/sim/simx/tex_unit.h b/sim/simx/tex_unit.h
index 5bca8098..8a1bf53a 100644
--- a/sim/simx/tex_unit.h
+++ b/sim/simx/tex_unit.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <array>
 #include "types.h"
 
 namespace vortex {
@@ -25,4 +26,4 @@ private:
     Core* core_;
 };
 
-}
\ No newline at end of file
+}