diff --git a/inc/adani/ExactCoefficientFunctions.h b/inc/adani/ExactCoefficientFunctions.h
index b738436..982c898 100644
--- a/inc/adani/ExactCoefficientFunctions.h
+++ b/inc/adani/ExactCoefficientFunctions.h
@@ -37,7 +37,7 @@
 class ExactCoefficientFunction : public CoefficientFunction {
 
     public:
-        ExactCoefficientFunction(const int& order, const char& kind, const char& channel, const int& method_flag = 1, const double& abserr = 1e-3, const double& relerr = 1e-3, const int& MCcalls = 25000, const int& dim = 1000) ;
+        ExactCoefficientFunction(const int& order, const char& kind, const char& channel, const double& abserr = 1e-3, const double& relerr = 1e-3, const int& dim = 1000, const int& method_flag = 1, const int& MCcalls = 25000) ;
         ~ExactCoefficientFunction() {} ;
 
         // get methods
diff --git a/src/ExactCoefficientFunctions.cc b/src/ExactCoefficientFunctions.cc
index d6db721..345f815 100644
--- a/src/ExactCoefficientFunctions.cc
+++ b/src/ExactCoefficientFunctions.cc
@@ -10,13 +10,13 @@
 using std::cout ;
 using std::endl ;
 
-ExactCoefficientFunction::ExactCoefficientFunction(const int& order, const char& kind, const char& channel, const int& method_flag, const double& abserr, const double& relerr, const int& MCcalls, const int& dim) : CoefficientFunction(order, kind, channel) {
+ExactCoefficientFunction::ExactCoefficientFunction(const int& order, const char& kind, const char& channel, const double& abserr, const double& relerr, const int& dim, const int& method_flag, const int& MCcalls) : CoefficientFunction(order, kind, channel) {
 
-    SetMethodFlag(method_flag);
     SetAbserr(abserr);
     SetRelerr(relerr);
-    SetMCcalls(MCcalls);
     SetDim(dim);
+    SetMethodFlag(method_flag);
+    SetMCcalls(MCcalls);
 
     gluon_lo_ = nullptr;
     gluon_nlo_ = nullptr;