diff --git a/matlab/ms-sbvar/ms_irf.m b/matlab/ms-sbvar/ms_irf.m
index dcf89d3e3210cc8c271014c9367d908476a07a90..ef8aa1028995b65af477569246a33f22e8d8f8d7 100644
--- a/matlab/ms-sbvar/ms_irf.m
+++ b/matlab/ms-sbvar/ms_irf.m
@@ -95,8 +95,8 @@ if options_.ms.regimes
         irf_data = reshape_ascii_irf_data(M_.endo_nbr, percentiles_size, ...
             options_.ms.horizon, irf_data);
         save([irfdir filesep 'irf_state_' num2str(state_i-1)], 'irf_data');
-        plot_ms_irf(M_,options_,irf_data,options_.varobs, ...
-            ['Impulse Responses, State ...' num2str(state_i)], varlist);
+        plot_ms_irf(M_, options_, irf_data, ...
+            ['Impulse Responses, State ' num2str(state_i)], varlist);
     end
 else
     if options_.ms.regime
@@ -120,6 +120,6 @@ else
     irf_data = reshape_ascii_irf_data(M_.endo_nbr, percentiles_size, ...
         options_.ms.horizon, irf_data);
     save([irfdir filesep save_filename], 'irf_data');
-    plot_ms_irf(M_, options_, irf_data, options_.varobs, irf_title, varlist);
+    plot_ms_irf(M_, options_, irf_data, irf_title, varlist);
 end
 end
diff --git a/matlab/ms-sbvar/plot_ms_irf.m b/matlab/ms-sbvar/plot_ms_irf.m
index 5d055a87ae53394682da165e58bab7915f1c2433..51b92d88e79dc32bfd6109a605f395937453decc 100644
--- a/matlab/ms-sbvar/plot_ms_irf.m
+++ b/matlab/ms-sbvar/plot_ms_irf.m
@@ -1,21 +1,18 @@
-function plot_ms_irf(M_, options_, irf, names, title_, varlist)
-% function plot_ms_irf(M_, options_, irf, names, title_, varlist)
+function plot_ms_irf(M_, options_, irf, title_, varlist)
+% function plot_ms_irf(M_, options_, irf, title_, varlist)
 % plots the impulse responses from the output from a ms-sbvar
 %
 % INPUTS
 %   M_
 %   irf should be in the form (percentile x horizon x (nvar x nvar)), if banded otherwise
 %     ( horizon x (nvar x nvar) )
-%
-%   names: character list of the names of the variables
-%
 %   title: optional super title
 %
 % The element in position (k,i+j*nvars) of ir is the response of the ith 
 % variable to the jth shock at horizon k.  Horizon 0 is the contemporaneous 
 % response.
 
-% Copyright (C) 2011 Dynare Team
+% Copyright (C) 2011-2012 Dynare Team
 %
 % This file is part of Dynare.
 %