diff --git a/src/fsfw/subsystem/SubsystemBase.h b/src/fsfw/subsystem/SubsystemBase.h
index 8cfd5be07..20507ce08 100644
--- a/src/fsfw/subsystem/SubsystemBase.h
+++ b/src/fsfw/subsystem/SubsystemBase.h
@@ -15,7 +15,9 @@
 
 /**
  * @defgroup subsystems Subsystem Objects
- * Contains all Subsystem and Assemblies
+ * All Subsystem and Assemblies can derive from this class. It contains helper classes to
+ * perform mode and health handling, which allows OBSW developers to build a mode tree for
+ * the whole satellite
  */
 class SubsystemBase : public SystemObject,
                       public HasModesIF,
@@ -123,11 +125,11 @@ class SubsystemBase : public SystemObject,
   virtual void performChildOperation() = 0;
 
   virtual ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
-                                         uint32_t *msToReachTheMode) = 0;
+                                         uint32_t *msToReachTheMode) override = 0;
 
-  virtual void startTransition(Mode_t mode, Submode_t submode) = 0;
+  virtual void startTransition(Mode_t mode, Submode_t submode) override = 0;
 
-  virtual void getMode(Mode_t *mode, Submode_t *submode);
+  virtual void getMode(Mode_t *mode, Submode_t *submode) override;
 
   virtual void setToExternalControl();