diff --git a/vcg/complex/trimesh/allocate.h b/vcg/complex/trimesh/allocate.h
index 664ecd11..d1e384f5 100644
--- a/vcg/complex/trimesh/allocate.h
+++ b/vcg/complex/trimesh/allocate.h
@@ -24,6 +24,9 @@
   History
 
 $Log: not supported by cvs2svn $
+Revision 1.4  2004/03/31 14:43:56  cignoni
+bug in update of VF adj
+
 Revision 1.3  2004/03/12 15:25:29  cignoni
 Corrected bug on the return of a wrong iterator
 
@@ -39,6 +42,9 @@ Initial commit
 
 ****************************************************************************/
 
+#ifndef __VCGLIB_TRIALLOCATOR
+#define __VCGLIB_TRIALLOCATOR
+
 namespace vcg {
 namespace tri {
 /** \addtogroup trimesh */
@@ -204,3 +210,5 @@ static FaceIterator AddFaces(MeshType &m, int n, PointerUpdater<FacePointer> &pu
 /*@}*/
 } // End Namespace TriMesh
 } // End Namespace vcg
+
+#endif
\ No newline at end of file