1 files changed, 3 insertions, 3 deletions
diff --git a/src/libjin/common/subsystem.h b/src/libjin/common/subsystem.h
index 90e8570..35563da 100644
--- a/src/libjin/common/subsystem.h
+++ b/src/libjin/common/subsystem.h
@@ -21,7 +21,7 @@ namespace jin
 
         void quit()
         {
-            quitSystem();
+            CALLONCE(quitSystem());
             destroy();
         }
 
@@ -32,8 +32,8 @@ namespace jin
 
         SINGLETON(System);
 
-        virtual bool initSystem(const Setting* setting) = 0;
-        virtual void quitSystem() = 0;
+        virtual onlyonce bool initSystem(const Setting* setting) = 0;
+        virtual onlyonce void quitSystem() = 0;
 
     };