diff --git a/matlab/histvalf_initvalf.m b/matlab/histvalf_initvalf.m
index 2ed72aee7..80faa595e 100644
--- a/matlab/histvalf_initvalf.m
+++ b/matlab/histvalf_initvalf.m
@@ -12,7 +12,7 @@ function series = histvalf_initvalf(caller, M, options)
 %    series:           dseries containing selected data from a file or a dseries
 %
 
-% Copyright (C) 2003-2020 Dynare Team
+% Copyright (C) 2003-2021 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -32,7 +32,7 @@ function series = histvalf_initvalf(caller, M, options)
 
 % dseries
 if isfield(options, 'series')
-    series = options.series;
+    series = evalin('base', options.series);
     dseries_ispresent = true;
 else
     dseries_ispresent = false;
@@ -230,4 +230,4 @@ else
     last_obs = series.last;
 end
 
-series = series(first_obs:last_obs);
\ No newline at end of file
+series = series(first_obs:last_obs);
diff --git a/preprocessor b/preprocessor
index 7b3df21f1..910649dd2 160000
--- a/preprocessor
+++ b/preprocessor
@@ -1 +1 @@
-Subproject commit 7b3df21f11b81c83938abd982575260ab61c993a
+Subproject commit 910649dd28ea3f78d6cf4cb245a2747207828bf5