diff --git a/tools/blob_interface.hpp b/tools/blob_interface.hpp
index 9b0ff7d..815874f 100644
--- a/tools/blob_interface.hpp
+++ b/tools/blob_interface.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <string>
 #include <vector>