diff --git a/src/Iaes_decrypter.h b/src/Iaes_decrypter.h
index 7fdf6046d..da992be95 100644
--- a/src/Iaes_decrypter.h
+++ b/src/Iaes_decrypter.h
@@ -10,6 +10,7 @@
 
 #include <bento4/Ap4Types.h>
 
+#include <cstdint>
 #include <string>
 
 class IAESDecrypter
@@ -31,4 +32,4 @@ class IAESDecrypter
 
 private:
   std::string m_licenseKey;
-};
\ No newline at end of file
+};
diff --git a/src/SSD_dll.h b/src/SSD_dll.h
index 6298d09cd..1017fcfc2 100644
--- a/src/SSD_dll.h
+++ b/src/SSD_dll.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <stdarg.h> // va_list, va_start, va_arg, va_end
 #include <string_view>
 
diff --git a/src/utils/FileUtils.h b/src/utils/FileUtils.h
index 40745b0d4..0924d8ff7 100644
--- a/src/utils/FileUtils.h
+++ b/src/utils/FileUtils.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <string_view>
 
diff --git a/src/utils/PropertiesUtils.h b/src/utils/PropertiesUtils.h
index b277f58ff..9dbea0fc9 100644
--- a/src/utils/PropertiesUtils.h
+++ b/src/utils/PropertiesUtils.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <map>
 #include <string>
 #include <utility>
diff --git a/src/utils/StringUtils.h b/src/utils/StringUtils.h
index fbafccdc9..e6a6ce4c2 100644
--- a/src/utils/StringUtils.h
+++ b/src/utils/StringUtils.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <string_view>
 #include <vector>
diff --git a/src/utils/Utils.h b/src/utils/Utils.h
index e7ae209e8..c858b8c48 100644
--- a/src/utils/Utils.h
+++ b/src/utils/Utils.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <map>
 #include <string>
 #include <string_view>