diff --git a/Eigen/src/Core/DenseBase.h b/Eigen/src/Core/DenseBase.h
index 322daad8f..c30d1bed9 100644
--- a/Eigen/src/Core/DenseBase.h
+++ b/Eigen/src/Core/DenseBase.h
@@ -429,7 +429,7 @@ template<typename Derived> class DenseBase
 
     template<typename BinaryOp>
     EIGEN_DEVICE_FUNC
-    typename internal::result_of<BinaryOp(typename internal::traits<Derived>::Scalar)>::type
+    typename internal::result_of<BinaryOp(typename internal::traits<Derived>::Scalar,typename internal::traits<Derived>::Scalar)>::type
     redux(const BinaryOp& func) const;
 
     template<typename Visitor>
diff --git a/Eigen/src/Core/Redux.h b/Eigen/src/Core/Redux.h
index 1a0a00481..f704fd07b 100644
--- a/Eigen/src/Core/Redux.h
+++ b/Eigen/src/Core/Redux.h
@@ -406,7 +406,7 @@ protected:
   */
 template<typename Derived>
 template<typename Func>
-EIGEN_STRONG_INLINE typename internal::result_of<Func(typename internal::traits<Derived>::Scalar)>::type
+EIGEN_STRONG_INLINE typename internal::result_of<Func(typename internal::traits<Derived>::Scalar,typename internal::traits<Derived>::Scalar)>::type
 DenseBase<Derived>::redux(const Func& func) const
 {
   eigen_assert(this->rows()>0 && this->cols()>0 && "you are using an empty matrix");
diff --git a/Eigen/src/Core/VectorwiseOp.h b/Eigen/src/Core/VectorwiseOp.h
index b3dc0c224..a15777a5e 100644
--- a/Eigen/src/Core/VectorwiseOp.h
+++ b/Eigen/src/Core/VectorwiseOp.h
@@ -124,7 +124,7 @@ EIGEN_MEMBER_FUNCTOR(prod, (Size-1)*NumTraits<Scalar>::MulCost);
 template <typename BinaryOp, typename Scalar>
 struct member_redux {
   typedef typename result_of<
-                     BinaryOp(Scalar)
+                     BinaryOp(Scalar,Scalar)
                    >::type  result_type;
   template<typename _Scalar, int Size> struct Cost
   { enum { value = (Size-1) * functor_traits<BinaryOp>::Cost }; };
diff --git a/Eigen/src/Geometry/Homogeneous.h b/Eigen/src/Geometry/Homogeneous.h
index f16451656..756ecf9dc 100644
--- a/Eigen/src/Geometry/Homogeneous.h
+++ b/Eigen/src/Geometry/Homogeneous.h
@@ -102,7 +102,7 @@ template<typename MatrixType,int _Direction> class Homogeneous
     }
 
     template<typename Func>
-    EIGEN_STRONG_INLINE typename internal::result_of<Func(Scalar)>::type
+    EIGEN_STRONG_INLINE typename internal::result_of<Func(Scalar,Scalar)>::type
     redux(const Func& func) const
     {
       return func(m_matrix.redux(func), Scalar(1));
diff --git a/test/array.cpp b/test/array.cpp
index ac9be097d..ad0182e10 100644
--- a/test/array.cpp
+++ b/test/array.cpp
@@ -331,7 +331,7 @@ void test_array()
   VERIFY((internal::is_same< internal::global_math_functions_filtering_base<int>::type, int >::value));
   VERIFY((internal::is_same< internal::global_math_functions_filtering_base<float>::type, float >::value));
   VERIFY((internal::is_same< internal::global_math_functions_filtering_base<Array2i>::type, ArrayBase<Array2i> >::value));
-  typedef CwiseUnaryOp<internal::scalar_sum_op<double>, ArrayXd > Xpr;
+  typedef CwiseUnaryOp<internal::scalar_multiple_op<double>, ArrayXd > Xpr;
   VERIFY((internal::is_same< internal::global_math_functions_filtering_base<Xpr>::type,
                            ArrayBase<Xpr>
                          >::value));