--- a/src/dssp.cpp
+++ b/src/dssp.cpp
@@ -73,7 +73,7 @@

    double alpha;
    char chirality;
-   tr1::tie(alpha,chirality) = residue.Alpha();
+   boost::tie(alpha,chirality) = residue.Alpha();

    uint32 bp[2] = {};
    char bridgelabel[2] = { ' ', ' ' };
--- a/src/primitives-3d.cpp
+++ b/src/primitives-3d.cpp
@@ -153,7 +153,7 @@

 // --------------------------------------------------------------------

-tr1::tuple<double,MPoint> QuaternionToAngleAxis(MQuaternion q)
+boost::tuple<double,MPoint> QuaternionToAngleAxis(MQuaternion q)
 {
    if (q.R_component_1() > 1)
        q = Normalize(q);
@@ -169,7 +169,7 @@

    MPoint axis(q.R_component_2() / s, q.R_component_3() / s, q.R_component_4() / s);

-   return tr1::make_tuple(angle, axis);
+   return boost::make_tuple(angle, axis);
 }

 MPoint CenterPoints(vector<MPoint>& points)
--- a/src/primitives-3d.h
+++ b/src/primitives-3d.h
@@ -9,7 +9,7 @@

 #include <vector>

-#include <boost/tr1/tuple.hpp>
+#include <boost/tuple/tuple.hpp>
 #include <boost/math/quaternion.hpp>

 typedef boost::math::quaternion<double> MQuaternion;
@@ -64,7 +64,7 @@

 MQuaternion Normalize(MQuaternion q);

-std::tr1::tuple<double,MPoint> QuaternionToAngleAxis(MQuaternion q);
+boost::tuple<double,MPoint> QuaternionToAngleAxis(MQuaternion q);
 MPoint Centroid(std::vector<MPoint>& points);
 MPoint CenterPoints(std::vector<MPoint>& points);
 MQuaternion AlignPoints(const std::vector<MPoint>& a, const std::vector<MPoint>& b);
--- a/src/structure.cpp
+++ b/src/structure.cpp
@@ -544,7 +544,7 @@
    return result;
 }

-tr1::tuple<double,char> MResidue::Alpha() const
+boost::tuple<double,char> MResidue::Alpha() const
 {
    double alhpa = 360;
    char chirality = ' ';
@@ -558,7 +558,7 @@
        else
            chirality = '+';
    }
-   return tr1::make_tuple(alhpa, chirality);
+   return boost::make_tuple(alhpa, chirality);
 }

 double MResidue::Kappa() const
--- a/src/structure.h
+++ b/src/structure.h
@@ -168,7 +168,7 @@

    double              Phi() const;
    double              Psi() const;
-   std::tr1::tuple<double,char>
+   boost::tuple<double,char>
                        Alpha() const;
    double              Kappa() const;
    double              TCO() const;