diff --git a/DynareBison.yy b/DynareBison.yy
index 28709769f324613bacc0126f86d5fd46d422d136..801aa600de6f1008b2df21b8f641ddfb46fe9ded 100644
--- a/DynareBison.yy
+++ b/DynareBison.yy
@@ -2654,6 +2654,7 @@ dynare_sensitivity_option : o_gsa_identification
                           | o_ar
                           | o_kalman_algo
                           | o_lik_init
+                          | o_diffuse_filter
                           | o_analytic_derivation
                           | o_analytic_derivation_mode
                           ;