diff --git a/mex/sources/estimation/libmat/QRDecomposition.cc b/mex/sources/estimation/libmat/QRDecomposition.cc
index 2b353ef7d81fa4fa66420b24f606c44473f0dfb2..38e3a5f5718a90d667fa6b6356be34ef85d1eb77 100644
--- a/mex/sources/estimation/libmat/QRDecomposition.cc
+++ b/mex/sources/estimation/libmat/QRDecomposition.cc
@@ -23,7 +23,7 @@
 
 QRDecomposition::QRDecomposition(size_t rows_arg, size_t cols_arg, size_t cols2_arg) :
   rows(rows_arg), cols(cols_arg), mind(std::min(rows, cols)), cols2(cols2_arg),
-  lwork(rows*cols), lwork2(cols2), H(rows), Q2(rows), v(rows)
+  lwork(rows*cols), lwork2(cols2)
 {
   work = new double[lwork];
   work2 = new double[lwork2];
diff --git a/mex/sources/estimation/libmat/QRDecomposition.hh b/mex/sources/estimation/libmat/QRDecomposition.hh
index 63c7c6a657cf931084d1b6b79c32fe572d73cc5b..f1236c285676aa8e2598c566e2f0040a400410dd 100644
--- a/mex/sources/estimation/libmat/QRDecomposition.hh
+++ b/mex/sources/estimation/libmat/QRDecomposition.hh
@@ -33,8 +33,6 @@ private:
   const size_t cols2;
   lapack_int lwork, lwork2;
   double *work, *work2, *tau;
-  Matrix H, Q2;
-  Vector v;
 public:
   /*!
     \todo Replace heuristic choice for workspace size by a query to determine the optimal size