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
@@ -61,13 +61,13 @@
     }
 
     ssSetNumContStates(S, MTTNX);
     ssSetNumDiscStates(S, 0);
 
-    if (!ssSetNumInputPorts(S, 1)) return;
-    ssSetInputPortWidth(S, 0, 1);
+    if (!ssSetNumInputPorts(S, MTTNU)) return;
     for (int i = 0; i < MTTNU; i++) {
+      ssSetInputPortWidth(S, i, 1);
       ssSetInputPortDirectFeedThrough(S, i, 1);
     }
 
     if (!ssSetNumOutputPorts(S, MTTNY)) return;
     for (int i = 0; i < MTTNY; i++) {