diff --git a/src/commands/CmdChart.cpp b/src/commands/CmdChart.cpp
index b28c401f..dbe4caa5 100644
--- a/src/commands/CmdChart.cpp
+++ b/src/commands/CmdChart.cpp
@@ -38,8 +38,8 @@
 int                renderChart           (const CLI&, const std::string&, Interval&, Rules&, Database&);
 static std::pair<int, int> determineHourRange (const std::string&, const Rules&, const Interval&, const std::vector <Interval>&);
 static void        renderAxis            (const std::string&, const Rules&, bool, const std::string&, int, int);
-static std::string renderMonth           (const Datetime &previous, const Datetime &day);
-static std::string renderWeek            (const std::string&, const Rules&, const Datetime&, const Datetime&);
+static std::string renderMonth           (const Datetime&, const Datetime&);
+static std::string renderWeek            (const Datetime&, const Datetime&);
 static std::string renderDayName         (const std::string&, const Rules&, Datetime&, Color&, Color&);
 static std::string renderTotal           (const std::string&, const Rules&, time_t);
 static std::string renderSubTotal        (const std::string&, const Rules&, int, int, time_t);
@@ -197,9 +197,10 @@ int renderChart (
     }
 
     const auto with_month = rules.getBoolean ("reports." + type + ".month");
+    const auto with_week = rules.getBoolean ("reports." + type + ".week");
 
     auto labelMonth = with_month ? renderMonth (previous, day) : "";
-    auto labelWeek  = renderWeek (type, rules, previous, day);
+    auto labelWeek  = with_week ? renderWeek (previous, day) : "";
     auto labelDay   = renderDayName (type, rules, day, colorToday, colorHoliday);
 
     std::cout << labelMonth
@@ -361,21 +362,14 @@ static std::string renderMonth (const Datetime &previous, const Datetime &day)
 
 ////////////////////////////////////////////////////////////////////////////////
 // Includes trailing separator space.
-static std::string renderWeek (
-  const std::string &type,
-  const Rules &rules,
-  const Datetime &previous,
-  const Datetime &day)
+static std::string renderWeek (const Datetime &previous, const Datetime &day)
 {
-  auto with_week  = rules.getBoolean ("reports." + type + ".week");
-
   const auto show_week = previous.week () != day.week ();
 
   std::stringstream out;
 
-  if (with_week)
-    out << (show_week ? leftJustify (format ("W{1}", day.week ()), 3) : "   ")
-        << ' ';
+  out << (show_week ? leftJustify (format ("W{1}", day.week ()), 3) : "   ")
+      << ' ';
 
   return out.str ();
 }