diff --git a/Applications/Calendar/Calendar.cpp b/Applications/Calendar/Calendar.cpp
index 7f731c7443..56319a98c9 100644
--- a/Applications/Calendar/Calendar.cpp
+++ b/Applications/Calendar/Calendar.cpp
@@ -2,7 +2,7 @@
 
 const String name_of_month(int month)
 {
-    const String month_names[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+    static const String month_names[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
     return month_names[month - 1];
 }
 
diff --git a/Applications/Calendar/CalendarWidget.cpp b/Applications/Calendar/CalendarWidget.cpp
index 2b8b96a69c..d4db33bbc6 100644
--- a/Applications/Calendar/CalendarWidget.cpp
+++ b/Applications/Calendar/CalendarWidget.cpp
@@ -128,7 +128,7 @@ void CalendarWidget::CalendarTile::update_values(Calendar& calendar, int index,
     m_display_weekday_name = index < 7;
 
     if (m_display_weekday_name) {
-        const String m_day_names[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
+        static const String m_day_names[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
         m_weekday_name = m_day_names[index];
     }