diff --git a/include/Parsodus/grammar.h b/include/Parsodus/grammar.h
index 73b1a9f..23dd707 100644
--- a/include/Parsodus/grammar.h
+++ b/include/Parsodus/grammar.h
@@ -38,6 +38,8 @@ namespace pds {
         Rule() : head(""), tail(), name("") {}
         Rule(const std::string& h, const std::vector<std::string>& t) : head(h), tail(t), name("") {}
         Rule(const std::string& h, const std::vector<std::string>& t, const std::string& name) : head(h), tail(t), name(name) {}
+        Rule(const std::string& h, const std::vector<std::string>& t, const std::string& name, std::pair<bool, std::pair<int, PrecedenceType>> precedence) : 
+            head(h), tail(t), name(name), precedence(precedence) {}
     };
 
     /**
@@ -59,7 +61,7 @@ namespace pds {
 
         Grammar(const Grammar& rhs)
             : start(rhs.start), variables(rhs.variables), terminals(rhs.terminals)
-              , rules(rhs.rules), first(nullptr), follow(nullptr) {
+              , rules(rhs.rules), precedence(rhs.precedence), first(nullptr), follow(nullptr) {
                   if (rhs.first)
                       first = std::make_unique<util::FirstSet>(*rhs.first);
                   if (rhs.follow)