diff --git a/Utilities/cmcppdap/include/dap/network.h b/Utilities/cmcppdap/include/dap/network.h
index 9d14f6b70f..dd3e006240 100644
--- a/Utilities/cmcppdap/include/dap/network.h
+++ b/Utilities/cmcppdap/include/dap/network.h
@@ -17,6 +17,7 @@
 
 #include <functional>
 #include <memory>
+#include <stdint.h>
 
 namespace dap {
 class ReaderWriter;