diff --git a/unsupported/Eigen/AlignedVector3 b/unsupported/Eigen/AlignedVector3
index b4966f500..19217693f 100644
--- a/unsupported/Eigen/AlignedVector3
+++ b/unsupported/Eigen/AlignedVector3
@@ -41,7 +41,7 @@ namespace Eigen {
 
 /** \class AlignedVector3
   *
-  * \brief A vectorization frinedly 3D vector
+  * \brief A vectorization friendly 3D vector
   *
   * This class represents a 3D vector internally using a 4D vector
   * such that vectorization can be seamlessly enabled. Of course,
@@ -70,13 +70,13 @@ template<typename _Scalar> class AlignedVector3
     inline int rows() const { return 3; }
     inline int cols() const { return 1; }
     
-    inline const Scalar coeff(int row, int col) const
+    inline const Scalar& coeff(int row, int col) const
     { return m_coeffs.coeff(row, col); }
     
     inline Scalar& coeffRef(int row, int col)
     { return m_coeffs.coeffRef(row, col); }
     
-    inline const Scalar coeff(int index) const
+    inline const Scalar& coeff(int index) const
     { return m_coeffs.coeff(index); }
 
     inline Scalar& coeffRef(int index)
diff --git a/unsupported/test/alignedvector3.cpp b/unsupported/test/alignedvector3.cpp
index 6a5a700ab..49c753953 100644
--- a/unsupported/test/alignedvector3.cpp
+++ b/unsupported/test/alignedvector3.cpp
@@ -30,7 +30,6 @@ void alignedvector3()
 {
   Scalar s1 = ei_random<Scalar>();
   Scalar s2 = ei_random<Scalar>();
-  Scalar s3 = ei_random<Scalar>();
   typedef Matrix<Scalar,3,1> RefType;
   typedef Matrix<Scalar,3,3> Mat33;
   typedef AlignedVector3<Scalar> FastType;