diff --git a/src/common/attribute.h b/src/common/attribute.h
index 7ad5969..d922f63 100644
--- a/src/common/attribute.h
+++ b/src/common/attribute.h
@@ -23,6 +23,7 @@
 #ifndef __ATTRIBUTE_H__
 #define __ATTRIBUTE_H__
 
+#include <cstdint>
 #include <string>
 
 class Attribute {
diff --git a/src/common/cake.h b/src/common/cake.h
index 61fadb2..1d3925d 100644
--- a/src/common/cake.h
+++ b/src/common/cake.h
@@ -23,6 +23,7 @@
 #ifndef __CAKE_H__
 #define __CAKE_H__
 
+#include <cstdint>
 #include <string>
 
 class Cake {