diff --git a/preprocessor/DynareBison.yy b/preprocessor/DynareBison.yy
index 90385b2a495d19331a271a5f29e45cc4e0a45670..347d03bd61b24fe07505b3eda7cbbcc420d3e5e6 100644
--- a/preprocessor/DynareBison.yy
+++ b/preprocessor/DynareBison.yy
@@ -1588,7 +1588,6 @@ multinomial_options_list : multinomial_options_list COMMA multinomial_options
 
 multinomial_options : o_multinomial_process
                     | o_multinomial_number_of_regimes
-                    | o_multinomial_parameters
                     | o_multinomial_probability
                     ;
 
@@ -2798,7 +2797,6 @@ o_equations : EQUATIONS EQUAL vec_int
 
 o_multinomial_process : PROCESS EQUAL INT_NUMBER { driver.option_num("multinomial.process",$3); };
 o_multinomial_number_of_regimes : NUMBER_OF_REGIMES EQUAL INT_NUMBER { driver.option_num("multinomial.number_of_regimes",$3); };
-o_multinomial_parameters : PARAMETERS EQUAL '[' symbol_list ']' { driver.option_symbol_list("multinomial.parameters"); };
 o_multinomial_probability : PROBABILITY EQUAL vec_value
                             { driver.option_num("multinomial.probability",$3); }
                           | PROBABILITY EQUAL '[' prob_symbol_list ']'
diff --git a/tests/nile.mod b/tests/nile.mod
index 1cab90b58893109c04288ec8427bae5a1ce50a60..8d7962ea349c79689895516543df1aa801c42bc4 100644
--- a/tests/nile.mod
+++ b/tests/nile.mod
@@ -3,8 +3,8 @@ varobs y;
 varexo ee emu;
 parameters Ve, Vmu, delta, S1, S2;
 
-multinomial( process=1, number_of_regimes=2, parameters = [S1], probability = [P1]);
-multinomial( process=2, number_of_regimes=2, parameters = [S2], probability = [P2]);
+multinomial( process=1, number_of_regimes=2, probability = [P1]);
+multinomial( process=2, number_of_regimes=2, probability = [P2]);
 // probability can be a single object representing a vector with a Dirlichet prior (see below) or a vector of calibrated values
 //add bernoulli instruction (similar to markov-switching for independent draws) and new options to create bernoulli process
 // I don' know if probabilities would be a better name than probability (vector  being implicit)