diff --git a/lib/methods/icingachecktask.cpp b/lib/methods/icingachecktask.cpp
index da46ef206..90e9390bd 100644
--- a/lib/methods/icingachecktask.cpp
+++ b/lib/methods/icingachecktask.cpp
@@ -20,6 +20,8 @@
 #include "methods/icingachecktask.hpp"
 #include "icinga/cib.hpp"
 #include "icinga/service.hpp"
+#include "icinga/checkcommand.hpp"
+#include "icinga/macroprocessor.hpp"
 #include "icinga/icingaapplication.hpp"
 #include "base/application.hpp"
 #include "base/objectlock.hpp"