diff --git a/src/external/libBNMR/TBNMR.cpp b/src/external/libBNMR/TBNMR.cpp
index bf139803..9339a48d 100644
--- a/src/external/libBNMR/TBNMR.cpp
+++ b/src/external/libBNMR/TBNMR.cpp
@@ -39,20 +39,10 @@
 #define PI 3.14159265358979323846
 #define TWOPI 6.28318530717958647692
 
-ClassImp(TBNMR)  // for the ROOT-dictionary
-ClassImp(ExpRlx)
+ClassImp(ExpRlx)  // for the ROOT-dictionary
 ClassImp(SExpRlx)
 ClassImp(MLRes)
 
-double TBNMR::operator()(double x, const vector<double> &par) const {
-  assert(par.size()==1); // make sure the number of parameters handed to the function is correct
-  
-  double arg(par[0]*x);
-
-  if(!arg)
-    return 1.0;
-  return sin(arg)/arg;
-}
 
 double ExpRlx::operator()(double x, const vector<double> &par) const {
   assert(par.size()==2); // make sure the number of parameters handed to the function is correct
@@ -81,10 +71,8 @@ double SExpRlx::operator()(double x, const vector<double> &par) const {
   // par[0] time of beam off
   // par[1] is the relaxation rate
   // par[2] is the exponent
-  double tau_p;
-  double y;
 
-  tau_p = (tau_Li/(1.+par[1]*tau_Li));
+  double y;
 
 
   if ( x >= 0 && x <= par[0] ) { 
diff --git a/src/external/libBNMR/TBNMR.h b/src/external/libBNMR/TBNMR.h
index 2304ff99..81c827a1 100644
--- a/src/external/libBNMR/TBNMR.h
+++ b/src/external/libBNMR/TBNMR.h
@@ -35,25 +35,11 @@
 #include <cmath>
 #include <vector>
 
+#ifndef LIBBNMRH
+#define LIBBNMRH
+
 using namespace std;
 
-class TBNMR : public PUserFcnBase {
-
-public:
-  // default constructor and destructor
-  TBNMR(){}
-  ~TBNMR(){}
-
-  Bool_t NeedGlobalPart() const { return false; }
-  void SetGlobalPart(vector<void *> &globalPart, UInt_t idx) { }
-  Bool_t GlobalPartIsValid() const { return true; }
-
-  // function operator
-  double operator()(double, const vector<double>&) const;
-
-  // definition of the class for the ROOT-dictionary
-  ClassDef(TBNMR,1)
-};
 
 class ExpRlx : public PUserFcnBase {
 
@@ -108,3 +94,5 @@ public:
   // definition of the class for the ROOT-dictionary
   ClassDef(MLRes,1)
 };
+
+#endif //LIBBNMRH
\ No newline at end of file
diff --git a/src/external/libBNMR/TBNMRLinkDef.h b/src/external/libBNMR/TBNMRLinkDef.h
index 027f958d..e7fd13d3 100644
--- a/src/external/libBNMR/TBNMRLinkDef.h
+++ b/src/external/libBNMR/TBNMRLinkDef.h
@@ -35,7 +35,6 @@
 #pragma link off all classes;
 #pragma link off all functions;
 
-#pragma link C++ class TBNMR+;
 #pragma link C++ class ExpRlx+;
 #pragma link C++ class SExpRlx+;
 #pragma link C++ class MLRes+;