diff --git a/Configuration/Configuration.hpp b/Configuration/Configuration.hpp
index 90370efab..b3af12612 100644
--- a/Configuration/Configuration.hpp
+++ b/Configuration/Configuration.hpp
@@ -9,6 +9,7 @@
 #include <optional>
 #include <string>
 #include <vector>
+#include <cstdint>
 
 namespace Configuration {
 struct Encryption_t {
diff --git a/UmatiServerLib/BindHelper.hpp b/UmatiServerLib/BindHelper.hpp
index 3897fd5fd..a1b396116 100644
--- a/UmatiServerLib/BindHelper.hpp
+++ b/UmatiServerLib/BindHelper.hpp
@@ -20,6 +20,7 @@
 #include "BindableMember.hpp"
 #include "BindableMemberValue.hpp"
 #include "Util.hpp"
+#include <cstdint>
 
 open62541Cpp::UA_NodeId resolveBrowsePath(UA_Server *pServer, const open62541Cpp::UA_BrowsePath &brPath);
 
diff --git a/UmatiServerLib/StateMachine.hpp b/UmatiServerLib/StateMachine.hpp
index 5336c02fa..0bc8e51f5 100644
--- a/UmatiServerLib/StateMachine.hpp
+++ b/UmatiServerLib/StateMachine.hpp
@@ -10,10 +10,12 @@
 #include <open62541/server.h>
 
 #include <Open62541Cpp/UA_NodeId.hpp>
-#include <list>
 
 #include "../OpcUaTypes/LocalizedText.hpp"
 
+#include <list>
+#include <cstdint>
+
 namespace UmatiServerLib {
 /**
  * @brief Read a state machine from the address space