diff --git a/src/@dseries/initialize.m b/src/@dseries/initialize.m
index 4a42ad28e81ed0d640ea7d57221080018c12ad49..5d300af4c59063b60c707c3c3f457ec9b078abeb 100644
--- a/src/@dseries/initialize.m
+++ b/src/@dseries/initialize.m
@@ -16,7 +16,11 @@ function initialize(fake)
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
 % Get the path to the dseries toolbox.
-dseries_src_root = strrep(which('@dseries/initialize.m'),'@dseries/initialize.m','');
+if ispc()
+    dseries_src_root = strrep(which('@dseries\initialize.m'),'@dseries\initialize.m','');
+else
+    dseries_src_root = strrep(which('@dseries/initialize.m'),'@dseries/initialize.m','');
+end
 
 % Check that the x13 binary is available
 nox13 = false;