diff --git a/Eigen/src/IterativeLinearSolvers/BiCGSTAB.h b/Eigen/src/IterativeLinearSolvers/BiCGSTAB.h
index 079b22d14..76195c70c 100644
--- a/Eigen/src/IterativeLinearSolvers/BiCGSTAB.h
+++ b/Eigen/src/IterativeLinearSolvers/BiCGSTAB.h
@@ -51,9 +51,9 @@ bool bicgstab(const MatrixType& mat, const Rhs& rhs, Dest& x,
     x.setZero();
     return true;
   }
-  Scalar rho    = 1;
-  Scalar alpha  = 1;
-  Scalar w      = 1;
+  Scalar rho    (1);
+  Scalar alpha  (1);
+  Scalar w      (1);
   
   VectorType v = VectorType::Zero(n), p = VectorType::Zero(n);
   VectorType y(n),  z(n);