Index: mttroot/mtt/lib/rep/sfun_rep/sfun.cc.tmpl
==================================================================
--- mttroot/mtt/lib/rep/sfun_rep/sfun.cc.tmpl
+++ mttroot/mtt/lib/rep/sfun_rep/sfun.cc.tmpl
@@ -104,10 +104,12 @@
   mexCallMATLAB (1, plhs, 1, prhs, "<mtt_model_name>_state");  
 
   for (int i = 0; i < MTTNX; i++) {
     ssGetContStates (S)[i] = states [i];
   }
+
+  mxDestroyArray (plhs[0]);
 }
 
 static void mdlOutputs(SimStruct *S, int_T tid)
 {
   static mxArray *plhs[1];
@@ -129,10 +131,12 @@
   double *outputs = mxGetPr (plhs[0]);
 
   for (int i = 0; i < MTTNY; i++) {
       ssGetOutputPortRealSignal (S,i)[0] = outputs [i];
   }
+
+  mxDestroyArray (plhs[0]);
 }
 
 #define MDL_DERIVATIVES
 static void mdlDerivatives(SimStruct *S)
 {
@@ -153,10 +157,12 @@
   double *rates= mxGetPr (plhs[0]);
   
   for (int i = 0; i < MTTNX; i++) {
     ssGetdX (S)[i] = rates [i];
   }
+
+  mxDestroyArray (plhs[0]);
 }
 
 static void mdlTerminate(SimStruct *S)
 {
     UNUSED_ARG(S);