diff --git a/src/decrypters/Helpers.h b/src/decrypters/Helpers.h
index f66e15f3e..55dca4407 100644
--- a/src/decrypters/Helpers.h
+++ b/src/decrypters/Helpers.h
@@ -8,6 +8,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <string_view>
 #include <vector>