diff --git a/simgear/structure/subsystem_mgr.cxx b/simgear/structure/subsystem_mgr.cxx
index 8b1d5ea4..9ae7d706 100644
--- a/simgear/structure/subsystem_mgr.cxx
+++ b/simgear/structure/subsystem_mgr.cxx
@@ -25,6 +25,11 @@ SGSubsystem::init ()
 {
 }
 
+void
+SGSubsystem::postinit ()
+{
+}
+
 void
 SGSubsystem::reinit ()
 {
@@ -87,6 +92,13 @@ SGSubsystemGroup::init ()
         _members[i]->subsystem->init();
 }
 
+void
+SGSubsystemGroup::postinit ()
+{
+    for (unsigned int i = 0; i < _members.size(); i++)
+        _members[i]->subsystem->postinit();
+}
+
 void
 SGSubsystemGroup::reinit ()
 {
@@ -250,6 +262,13 @@ SGSubsystemMgr::init ()
             _groups[i].init();
 }
 
+void
+SGSubsystemMgr::postinit ()
+{
+    for (int i = 0; i < MAX_GROUPS; i++)
+            _groups[i].postinit();
+}
+
 void
 SGSubsystemMgr::reinit ()
 {
diff --git a/simgear/structure/subsystem_mgr.hxx b/simgear/structure/subsystem_mgr.hxx
index cd612335..03cbbb8d 100644
--- a/simgear/structure/subsystem_mgr.hxx
+++ b/simgear/structure/subsystem_mgr.hxx
@@ -140,6 +140,18 @@ public:
   virtual void init ();
 
 
+  /**
+   * Initialize parts that depend on other subsystems having been initialized.
+   *
+   * <p>This method should set up all parts that depend on other
+   * subsystems. One example is the scripting/Nasal subsystem, which
+   * is initialized last. So, if a subsystem wants to execute Nasal
+   * code in subsystem-specific configuration files, it has to do that
+   * in its postinit() method.</p>
+   */
+  virtual void postinit ();
+
+
   /**
    * Reinitialize the subsystem.
    *
@@ -243,6 +255,7 @@ public:
     virtual ~SGSubsystemGroup ();
 
     virtual void init ();
+    virtual void postinit ();
     virtual void reinit ();
     virtual void bind ();
     virtual void unbind ();
@@ -315,6 +328,7 @@ public:
     virtual ~SGSubsystemMgr ();
 
     virtual void init ();
+    virtual void postinit ();
     virtual void reinit ();
     virtual void bind ();
     virtual void unbind ();