diff --git a/nml/parser.py b/nml/parser.py

index 8d28382..7193262 100644

--- a/nml/parser.py

+++ b/nml/parser.py

@@ -441,8 +441,12 @@ class NMLParser(object):

         else: t[0] = t[1] + [switch.RandomChoice(t[2], t[4])]

 

     def p_produce(self, t):

-        'produce : PRODUCE LPAREN expression_list RPAREN SEMICOLON'

-        t[0] = produce.Produce(t[3], t.lineno(1))

+        '''produce : PRODUCE LPAREN ID COMMA expression COMMA expression COMMA expression COMMA expression COMMA expression RPAREN SEMICOLON

+                           | PRODUCE LPAREN ID COMMA expression COMMA expression COMMA expression COMMA expression COMMA expression COMMA expression RPAREN SEMICOLON'''

+        if len(t) == 16:

+            t[0] = produce.Produce([t[3], t[5], t[7], t[9], t[11], t[13]], t.lineno(1))

+        else:

+            t[0] = produce.Produce([t[3], t[5], t[7], t[9], t[11], t[13], t[15]], t.lineno(1))

 

     def p_produce_cargo_list(self, t):

         '''produce_cargo_list : LBRACKET RBRACKET