diff --git a/include/osg/Texture b/include/osg/Texture
index 0bc6b8746..9ff0fb291 100644
--- a/include/osg/Texture
+++ b/include/osg/Texture
@@ -955,6 +955,7 @@ class OSG_EXPORT Texture : public osg::StateAttribute
                 _height = height;
                 _depth = depth;
                 _border = border;
+                computeSize();
             }
 
             inline bool match(GLenum    target,
diff --git a/src/osg/Texture.cpp b/src/osg/Texture.cpp
index 3b53dced4..9942f5f78 100644
--- a/src/osg/Texture.cpp
+++ b/src/osg/Texture.cpp
@@ -91,12 +91,19 @@ void Texture::TextureObject::setAllocated(GLint     numMipmapLevels,
     _allocated=true;
     if (!match(_profile._target,numMipmapLevels,internalFormat,width,height,depth,border))
     {
+        // keep previous size
+        unsigned int previousSize = _profile._size;
+
         _profile.set(numMipmapLevels,internalFormat,width,height,depth,border);
 
         if (_set)
         {
             _set->moveToSet(this, _set->getParent()->getTextureObjectSet(_profile));
-        }
+
+            // Update texture pool size
+            _set->getParent()->getCurrTexturePoolSize() -= previousSize;
+            _set->getParent()->getCurrTexturePoolSize() += _profile._size;
+       }
     }
 }