diff --git a/Source/Common/Platform/NMR_EncryptionHeader.cpp b/Source/Common/Platform/NMR_EncryptionHeader.cpp
index 7a2354ad6..d2e2d744d 100644
--- a/Source/Common/Platform/NMR_EncryptionHeader.cpp
+++ b/Source/Common/Platform/NMR_EncryptionHeader.cpp
@@ -8,6 +8,7 @@
 #include "Common/Platform/NMR_ExportStream.h"
 
 #include "Common/NMR_Architecture_Utils.h"
+#include <cstdint>
 #include <cstring>
 
 #define LIB3MF_MAXENCRYPTIONHEADERSIZE (1UL << 31)
diff --git a/Source/Common/Platform/NMR_ImportStream_Unique_Memory.cpp b/Source/Common/Platform/NMR_ImportStream_Unique_Memory.cpp
index 43fd4282a..e966aa00a 100644
--- a/Source/Common/Platform/NMR_ImportStream_Unique_Memory.cpp
+++ b/Source/Common/Platform/NMR_ImportStream_Unique_Memory.cpp
@@ -35,6 +35,8 @@ This is a platform independent class for keeping data in a memory stream that ow
 #include "Common/NMR_Exception.h"
 #include "Common/NMR_Exception_Windows.h"
 
+#include <cstdint>
+
 namespace NMR {
 
 	CImportStream_Unique_Memory::CImportStream_Unique_Memory()