diff --git a/include/osgAnimation/RigTransformSoftware b/include/osgAnimation/RigTransformSoftware
index 8fdb3ac6c..300e513fd 100644
--- a/include/osgAnimation/RigTransformSoftware
+++ b/include/osgAnimation/RigTransformSoftware
@@ -31,7 +31,7 @@ namespace osgAnimation
     {
     public:
         RigTransformSoftware();
-        RigTransformSoftware(const RigTransformSoftware&,const osg::CopyOp&){};
+        RigTransformSoftware(const RigTransformSoftware& rts,const osg::CopyOp& copyop);
 
         META_Object(osgAnimation,RigTransformSoftware)
 
diff --git a/src/osgAnimation/RigTransformHardware.cpp b/src/osgAnimation/RigTransformHardware.cpp
index 86f08ed35..82ae6b3e6 100644
--- a/src/osgAnimation/RigTransformHardware.cpp
+++ b/src/osgAnimation/RigTransformHardware.cpp
@@ -37,7 +37,7 @@ RigTransformHardware::RigTransformHardware(const RigTransformHardware& rth, cons
     _boneWeightAttribArrays(rth._boneWeightAttribArrays),
     _uniformMatrixPalette(rth._uniformMatrixPalette),
     _shader(rth._shader),
-    _needInit(false)
+    _needInit(rth._needInit)
 {
 }
 
diff --git a/src/osgAnimation/RigTransformSoftware.cpp b/src/osgAnimation/RigTransformSoftware.cpp
index 7dba6e6bb..b9537cf8d 100644
--- a/src/osgAnimation/RigTransformSoftware.cpp
+++ b/src/osgAnimation/RigTransformSoftware.cpp
@@ -25,6 +25,14 @@ RigTransformSoftware::RigTransformSoftware()
     _needInit = true;
 }
 
+RigTransformSoftware::RigTransformSoftware(const RigTransformSoftware& rts,const osg::CopyOp& copyop):
+    RigTransform(rts, copyop),
+    _needInit(rts._needInit),
+    _invalidInfluence(rts._invalidInfluence)
+{
+
+}
+
 bool RigTransformSoftware::init(RigGeometry& geom)
 {
     if (!geom.getSkeleton())