diff --git a/src/Core/CommonTypes.h b/src/Core/CommonTypes.h
index afb7023..ee270aa 100644
--- a/src/Core/CommonTypes.h
+++ b/src/Core/CommonTypes.h
@@ -2,9 +2,10 @@
 #define COMMONTYPES_H
 
 #ifndef _WIN32
-typedef int8_t BYTE;
-typedef int16_t WORD;
-typedef int32_t DWORD;
+#include <cstdint>
+typedef uint8_t BYTE;
+typedef uint16_t WORD;
+typedef uint32_t DWORD;
 #endif
 
 #ifdef AMIGA