diff --git a/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/python.h b/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/python.h
index 6d39865e..ce5dc989 100644
--- a/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/python.h
+++ b/src/debugpy/_vendored/pydevd/pydevd_attach_to_process/common/python.h
@@ -19,6 +19,8 @@
 
 #include "../common/py_version.hpp"
 
+#include <cstdint>
+
 #ifndef _WIN32
 typedef unsigned int DWORD;
 typedef ssize_t SSIZE_T;