diff --git a/lib/icinga/host.hpp b/lib/icinga/host.hpp
index 3c25c8a47..c6b2e8e5f 100644
--- a/lib/icinga/host.hpp
+++ b/lib/icinga/host.hpp
@@ -55,7 +55,7 @@ public:
 	virtual HostState GetLastState(void) const override;
 	virtual HostState GetLastHardState(void) const override;
 
-	virtual void SaveLastState(ServiceState state, double timestamp);
+	virtual void SaveLastState(ServiceState state, double timestamp) override;
 
 	static HostState StateFromString(const String& state);
 	static String StateToString(HostState state);
diff --git a/lib/icinga/service.hpp b/lib/icinga/service.hpp
index dfe7b9c37..4ac897911 100644
--- a/lib/icinga/service.hpp
+++ b/lib/icinga/service.hpp
@@ -45,7 +45,7 @@ public:
 
 	virtual bool ResolveMacro(const String& macro, const CheckResult::Ptr& cr, Value *result) const override;
 
-	virtual void SaveLastState(ServiceState state, double timestamp);
+	virtual void SaveLastState(ServiceState state, double timestamp) override;
 
 	static ServiceState StateFromString(const String& state);
 	static String StateToString(ServiceState state);