diff --git a/preprocessor/DynareMain.cc b/preprocessor/DynareMain.cc
index e99b48c6191a2d7d7201d3bb5f613a56c040dc6e..832bd0d41bbf842f0c7594001cfc81751725763c 100644
--- a/preprocessor/DynareMain.cc
+++ b/preprocessor/DynareMain.cc
@@ -37,7 +37,7 @@ void main2(stringstream &in, string &basename, bool debug, bool clear_all, bool
 void
 usage()
 {
-  cerr << "Dynare usage: dynare mod_file [debug] [noclearall] [savemacro]" << endl;
+  cerr << "Dynare usage: dynare mod_file [debug] [noclearall] [savemacro] [notmpterms]" << endl;
   exit(EXIT_FAILURE);
 }