diff --git a/Eigen/src/Core/BandMatrix.h b/Eigen/src/Core/BandMatrix.h
index 320981fa6..85bd8dba7 100644
--- a/Eigen/src/Core/BandMatrix.h
+++ b/Eigen/src/Core/BandMatrix.h
@@ -87,7 +87,7 @@ class BandMatrix : public AnyMatrixBase<BandMatrix<_Scalar,Rows,Cols,Supers,Subs
       : m_data(1+supers+subs,cols),
         m_rows(rows), m_supers(supers), m_subs(subs)
     {
-        m_data.setConstant(666);
+        //m_data.setConstant(666);
     }
 
     /** \returns the number of columns */