diff --git a/ql/math/randomnumbers/stochasticcollocationinvcdf.cpp b/ql/math/randomnumbers/stochasticcollocationinvcdf.cpp
index 9a8b3e2a17a..f6d0c81c519 100644
--- a/ql/math/randomnumbers/stochasticcollocationinvcdf.cpp
+++ b/ql/math/randomnumbers/stochasticcollocationinvcdf.cpp
@@ -21,9 +21,9 @@
 /*! \file stochasticcollationcdf.cpp
 */
 
-#include <ql/mathconstants.hpp>
 #include <ql/math/integrals/gaussianquadratures.hpp>
 #include <ql/math/randomnumbers/stochasticcollocationinvcdf.hpp>
+#include <ql/mathconstants.hpp>
 
 namespace QuantLib {
 
diff --git a/ql/methods/finitedifferences/solvers/fdmbackwardsolver.cpp b/ql/methods/finitedifferences/solvers/fdmbackwardsolver.cpp
index f22a83de017..5e2aff3b43f 100644
--- a/ql/methods/finitedifferences/solvers/fdmbackwardsolver.cpp
+++ b/ql/methods/finitedifferences/solvers/fdmbackwardsolver.cpp
@@ -22,7 +22,6 @@
 /*! \file fdmbackwardsolver.cpp
 */
 
-#include <ql/mathconstants.hpp>
 #include <ql/methods/finitedifferences/finitedifferencemodel.hpp>
 #include <ql/methods/finitedifferences/schemes/craigsneydscheme.hpp>
 #include <ql/methods/finitedifferences/schemes/cranknicolsonscheme.hpp>
@@ -35,6 +34,7 @@
 #include <ql/methods/finitedifferences/schemes/trbdf2scheme.hpp>
 #include <ql/methods/finitedifferences/solvers/fdmbackwardsolver.hpp>
 #include <ql/methods/finitedifferences/stepconditions/fdmstepconditioncomposite.hpp>
+#include <ql/mathconstants.hpp>
 #include <utility>