diff --git a/Extractor/Extractor.cpp b/Extractor/Extractor.cpp
index 7623ce100..75da39825 100644
--- a/Extractor/Extractor.cpp
+++ b/Extractor/Extractor.cpp
@@ -210,8 +210,7 @@ int Extractor::Run(int argc, char *argv[])
                     case osmium::item_type::relation:
                         ++number_of_relations;
                         resulting_restrictions.push_back(
-                            restriction_parser.TryParse(scripting_environment.getLuaState(),
-                                                        static_cast<osmium::Relation &>(*entity)));
+                            restriction_parser.TryParse(static_cast<osmium::Relation &>(*entity)));
                         break;
                     default:
                         ++number_of_others;
diff --git a/Extractor/RestrictionParser.cpp b/Extractor/RestrictionParser.cpp
index 4ed2b4a82..2f122c851 100644
--- a/Extractor/RestrictionParser.cpp
+++ b/Extractor/RestrictionParser.cpp
@@ -39,13 +39,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <boost/ref.hpp>
 #include <boost/regex.hpp>
 
-#include <cstring>
-
 namespace
 {
-int lua_error_callback(lua_State *L)
+int lua_error_callback(lua_State *lua_state)
 {
-    luabind::object error_msg(luabind::from_stack(L, -1));
+    luabind::object error_msg(luabind::from_stack(lua_state, -1));
     std::ostringstream error_stream;
     error_stream << error_msg;
     throw OSRMException("ERROR occured in profile script:\n" + error_stream.str());
@@ -106,7 +104,7 @@ void RestrictionParser::ReadRestrictionExceptions(lua_State *lua_state)
 }
 
 mapbox::util::optional<InputRestrictionContainer>
-RestrictionParser::TryParse(lua_State *lua_state, osmium::Relation &relation) const
+RestrictionParser::TryParse(osmium::Relation &relation) const
 {
     // return if turn restrictions should be ignored
     if (!use_turn_restrictions)
diff --git a/Extractor/RestrictionParser.h b/Extractor/RestrictionParser.h
index ddf838f4b..197484db9 100644
--- a/Extractor/RestrictionParser.h
+++ b/Extractor/RestrictionParser.h
@@ -46,8 +46,7 @@ class RestrictionParser
   public:
     // RestrictionParser(ScriptingEnvironment &scripting_environment);
     RestrictionParser(lua_State *lua_state);
-    mapbox::util::optional<InputRestrictionContainer> TryParse(lua_State *lua_state,
-                                                               osmium::Relation &relation) const;
+    mapbox::util::optional<InputRestrictionContainer> TryParse(osmium::Relation &relation) const;
 
   private:
     void ReadUseRestrictionsSetting(lua_State *lua_state);