diff --git a/ql/math/optimization/levenbergmarquardt.cpp b/ql/math/optimization/levenbergmarquardt.cpp
index c3893d89030..e7b66406c64 100644
--- a/ql/math/optimization/levenbergmarquardt.cpp
+++ b/ql/math/optimization/levenbergmarquardt.cpp
@@ -101,6 +101,8 @@ namespace QuantLib {
                        wa1.get(), wa2.get(), wa3.get(), wa4.get(),
                        lmdifCostFunction,
                        lmdifJacFunction);
+        // for the time being
+        info_ = info;
         // check requirements & endCriteria evaluation
         QL_REQUIRE(info != 0, "MINPACK: improper input parameters");
         QL_REQUIRE(info != 7, "MINPACK: xtol is too small. no further "
diff --git a/ql/math/optimization/levenbergmarquardt.hpp b/ql/math/optimization/levenbergmarquardt.hpp
index 7842ec4ec28..6e60f1f44bc 100644
--- a/ql/math/optimization/levenbergmarquardt.hpp
+++ b/ql/math/optimization/levenbergmarquardt.hpp
@@ -54,6 +54,7 @@ namespace QuantLib {
                            bool useCostFunctionsJacobian = false);
         EndCriteria::Type minimize(Problem& P,
                                    const EndCriteria& endCriteria) override;
+
         void fcn(int m,
                  int n,
                  Real* x,
@@ -65,10 +66,16 @@ namespace QuantLib {
                  Real* fjac,
                  int* iflag);
 
+        /*! \deprecated Don't use this method; inspect the result of minimize instead.
+                        Deprecated in version 1.36.
+        */
+        [[deprecated("Don't use this method; inspect the result of minimize instead")]]
+        virtual Integer getInfo() const { return info_; }
       private:
         Problem* currentProblem_;
         Array initCostValues_;
         Matrix initJacobian_;
+        mutable Integer info_ = 0; // remove together with getInfo
         const Real epsfcn_, xtol_, gtol_;
         const bool useCostFunctionsJacobian_;
     };