diff --git a/simgear/scene/model/animation.hxx b/simgear/scene/model/animation.hxx
index 3c73eb47..c0c7fc39 100644
--- a/simgear/scene/model/animation.hxx
+++ b/simgear/scene/model/animation.hxx
@@ -392,7 +392,6 @@ public:
   virtual void init();
 private:
   void setAlphaClampToBranch(ssgBranch *b, float clamp);
-  bool _done;
   float _alpha_clamp;
 };