diff --git a/source/blender/blenlib/BLI_generic_key.hh b/source/blender/blenlib/BLI_generic_key.hh
index c9899d4464b..62690981ea9 100644
--- a/source/blender/blenlib/BLI_generic_key.hh
+++ b/source/blender/blenlib/BLI_generic_key.hh
@@ -8,6 +8,7 @@
  * \ingroup bli
  */
 
+#include <cstdint>
 #include <memory>
 
 #include "BLI_assert.h"