diff --git a/DynareBison.yy b/DynareBison.yy
index 03e4b844683d8a40c8affeee6500a03c21e6f036..d84d779077d4794d8ad826e8c96a236e17a96419 100644
--- a/DynareBison.yy
+++ b/DynareBison.yy
@@ -114,7 +114,7 @@ class ParsingDriver;
 %token FILTER_ALGORITHM PROPOSAL_APPROXIMATION CUBATURE UNSCENTED MONTECARLO DISTRIBUTION_APPROXIMATION
 %token <string_val> NAME
 %token NAN_CONSTANT NO_STATIC NOBS NOCONSTANT NODISPLAY NOCORR NODIAGNOSTIC NOFUNCTIONS NO_HOMOTOPY
-%token NOGRAPH NOMOMENTS NOPRINT NORMAL_PDF SAVE_DRAWS
+%token NOGRAPH POSTERIOR_NOGRAPH POSTERIOR_GRAPH NOMOMENTS NOPRINT NORMAL_PDF SAVE_DRAWS
 %token OBSERVATION_TRENDS OPTIM OPTIM_WEIGHTS ORDER OSR OSR_PARAMS MAX_DIM_COVA_GROUP ADVANCED OUTFILE OUTVARS OVERWRITE
 %token PARALLEL_LOCAL_FILES PARAMETERS PARAMETER_SET PARTIAL_INFORMATION PERIODS PERIOD PLANNER_OBJECTIVE PLOT_CONDITIONAL_FORECAST PLOT_PRIORS PREFILTER PRESAMPLE
 %token PERFECT_FORESIGHT_SETUP PERFECT_FORESIGHT_SOLVER NO_POSTERIOR_KERNEL_DENSITY FUNCTION
@@ -1726,6 +1726,7 @@ estimation_options : o_datafile
                    | o_lik_algo
                    | o_lik_init
                    | o_nograph
+                   | o_posterior_nograph
                    | o_nodisplay
                    | o_graph_format
                    | o_forecasts_conf_sig
@@ -2816,6 +2817,11 @@ o_nograph : NOGRAPH
           | GRAPH
             { driver.option_num("nograph", "0"); }
           ;
+o_posterior_nograph : POSTERIOR_NOGRAPH
+            { driver.option_num("no_graph.posterior","1"); }
+          | POSTERIOR_GRAPH
+            { driver.option_num("no_graph.posterior", "0"); }
+          ;
 o_shock_decomposition_nograph : NOGRAPH { driver.option_num("no_graph.shock_decomposition", "1"); }
 o_nodisplay : NODISPLAY { driver.option_num("nodisplay","1"); };
 o_graph_format : GRAPH_FORMAT EQUAL allowed_graph_formats
diff --git a/DynareFlex.ll b/DynareFlex.ll
index e461cb82550b2a1001c235af3f2cb12ea9e11142..8d00b28740b69aba1715e4b1c743f045b41dab6c 100644
--- a/DynareFlex.ll
+++ b/DynareFlex.ll
@@ -276,6 +276,8 @@ DATE -?[0-9]+([YyAa]|[Mm]([1-9]|1[0-2])|[Qq][1-4]|[Ww]([1-9]{1}|[1-4][0-9]|5[0-2
 <DYNARE_STATEMENT>raftery_lewis_diagnostics {return token::RAFTERY_LEWIS_DIAGNOSTICS;}
 <DYNARE_STATEMENT>graph   		{return token::GRAPH;}
 <DYNARE_STATEMENT>nograph   		{return token::NOGRAPH;}
+<DYNARE_STATEMENT>posterior_graph   		{return token::POSTERIOR_GRAPH;}
+<DYNARE_STATEMENT>posterior_nograph   		{return token::POSTERIOR_NOGRAPH;}
 <DYNARE_STATEMENT>nodisplay     {return token::NODISPLAY;}
 <DYNARE_STATEMENT>graph_format  {return token::GRAPH_FORMAT;}
 <DYNARE_STATEMENT>eps  {yylval->string_val = new string(yytext); return token::EPS;}