diff --git a/Engine/source/gfx/bitmap/loaders/ies/ies_loader.h b/Engine/source/gfx/bitmap/loaders/ies/ies_loader.h
index 532b47d32..01c0e6a37 100644
--- a/Engine/source/gfx/bitmap/loaders/ies/ies_loader.h
+++ b/Engine/source/gfx/bitmap/loaders/ies/ies_loader.h
@@ -37,6 +37,7 @@
 #ifndef _H_IES_LOADER_H_
 #define _H_IES_LOADER_H_
 
+#include <cstdint>
 #include <vector>
 #include <string>