diff --git a/densities.cc b/densities.cc
index 9f6d1e4..300525c 100644
--- a/densities.cc
+++ b/densities.cc
@@ -754,8 +754,8 @@ void coarsen_density( const refinement_hierarchy& rh, GridHierarchy<real_t>& u )
 	}
     }
   
-  //for( int i=rh.levelmax(); i>0; --i )
-  // mg_straight().restrict( *(u.get_grid(i)), *(u.get_grid(i-1)) );
+  for( int i=rh.levelmax(); i>0; --i )
+   mg_straight().restrict( *(u.get_grid(i)), *(u.get_grid(i-1)) );
 
 }