diff --git a/mex/sources/bytecode/Evaluate.hh b/mex/sources/bytecode/Evaluate.hh
index c498dff28c31580d5186ccea9d6d7bde31f8840d..3341979250f54c6ad62bf80251b1d20f7490833b 100644
--- a/mex/sources/bytecode/Evaluate.hh
+++ b/mex/sources/bytecode/Evaluate.hh
@@ -32,7 +32,6 @@
 class Evaluate : public ErrorMsg
 {
 private:
-  unsigned int EQN_dvar1, EQN_dvar2, EQN_dvar3;
   int EQN_lag1, EQN_lag2, EQN_lag3;
 protected:
   mxArray *GlobalTemporaryTerms;