diff --git a/extras/Hadrons/Modules/MContraction/Baryon.hpp b/extras/Hadrons/Modules/MContraction/Baryon.hpp
index 6bccda2e..be7d919c 100644
--- a/extras/Hadrons/Modules/MContraction/Baryon.hpp
+++ b/extras/Hadrons/Modules/MContraction/Baryon.hpp
@@ -112,7 +112,7 @@ void TBaryon<FImpl1, FImpl2, FImpl3>::execute(void)
                  << " quarks '" << par().q1 << "', '" << par().q2 << "', and '"
                  << par().q3 << "'" << std::endl;
     
-    XmlWriter             writer(par().output);
+    CorrWriter             writer(par().output);
     PropagatorField1      &q1 = *env().template getObject<PropagatorField1>(par().q1);
     PropagatorField2      &q2 = *env().template getObject<PropagatorField2>(par().q2);
     PropagatorField3      &q3 = *env().template getObject<PropagatorField3>(par().q2);
diff --git a/extras/Hadrons/Modules/MContraction/Meson.hpp b/extras/Hadrons/Modules/MContraction/Meson.hpp
index 9581b8d5..4cbe1ac4 100644
--- a/extras/Hadrons/Modules/MContraction/Meson.hpp
+++ b/extras/Hadrons/Modules/MContraction/Meson.hpp
@@ -162,7 +162,7 @@ void TMeson<FImpl1, FImpl2>::execute(void)
                  << " quarks '" << par().q1 << "' and '" << par().q2 << "'"
                  << std::endl;
     
-    XmlWriter              writer(par().output);
+    CorrWriter              writer(par().output);
     PropagatorField1       &q1 = *env().template getObject<PropagatorField1>(par().q1);
     PropagatorField2       &q2 = *env().template getObject<PropagatorField2>(par().q2);
     LatticeComplex         c(env().getGrid());
diff --git a/extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc b/extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
index 4a1c9e39..a44c2534 100644
--- a/extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
+++ b/extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
@@ -93,7 +93,7 @@ void TWeakHamiltonianEye::execute(void)
                  << par().q2 << ", '" << par().q3 << "' and '" << par().q4 
                  << "'." << std::endl;
 
-    XmlWriter             writer(par().output);
+    CorrWriter             writer(par().output);
     PropagatorField &q1 = *env().template getObject<PropagatorField>(par().q1);
     PropagatorField &q2 = *env().template getObject<PropagatorField>(par().q2);
     PropagatorField &q3 = *env().template getObject<PropagatorField>(par().q3);
diff --git a/extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc b/extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc
index 7945f9cb..2c4df68a 100644
--- a/extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc
+++ b/extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc
@@ -95,7 +95,7 @@ void TWeakHamiltonianNonEye::execute(void)
                  << par().q2 << ", '" << par().q3 << "' and '" << par().q4 
                  << "'." << std::endl;
     
-    XmlWriter             writer(par().output);
+    CorrWriter             writer(par().output);
     PropagatorField &q1 = *env().template getObject<PropagatorField>(par().q1);
     PropagatorField &q2 = *env().template getObject<PropagatorField>(par().q2);
     PropagatorField &q3 = *env().template getObject<PropagatorField>(par().q3);