diff --git a/drape_frontend/route_renderer.cpp b/drape_frontend/route_renderer.cpp
index dbd295f4b1..7af0e0deb7 100644
--- a/drape_frontend/route_renderer.cpp
+++ b/drape_frontend/route_renderer.cpp
@@ -16,10 +16,10 @@
 namespace df
 {
 
-std::string kRouteColor = "Route";
-std::string kRouteOutlineColor = "RouteOutline";
-std::string kRoutePedestrian = "RoutePedestrian";
-std::string kRouteBicycle = "RouteBicycle";
+std::string const kRouteColor = "Route";
+std::string const kRouteOutlineColor = "RouteOutline";
+std::string const kRoutePedestrian = "RoutePedestrian";
+std::string const kRouteBicycle = "RouteBicycle";
 
 namespace
 {
diff --git a/drape_frontend/route_renderer.hpp b/drape_frontend/route_renderer.hpp
index 47e08c4e06..025b76f66a 100644
--- a/drape_frontend/route_renderer.hpp
+++ b/drape_frontend/route_renderer.hpp
@@ -12,10 +12,10 @@
 namespace df
 {
 
-extern std::string kRouteColor;
-extern std::string kRouteOutlineColor;
-extern std::string kRoutePedestrian;
-extern std::string kRouteBicycle;
+extern std::string const kRouteColor;
+extern std::string const kRouteOutlineColor;
+extern std::string const kRoutePedestrian;
+extern std::string const kRouteBicycle;
 
 class RouteRenderer final
 {
diff --git a/indexer/drawing_rules.cpp b/indexer/drawing_rules.cpp
index 52e57b5ebc..bab36bc230 100644
--- a/indexer/drawing_rules.cpp
+++ b/indexer/drawing_rules.cpp
@@ -174,7 +174,7 @@ uint32_t RulesHolder::GetBgColor(int scale) const
 
 uint32_t RulesHolder::GetColor(std::string const & name) const
 {
-  auto it = m_colors.find(name);
+  auto const it = m_colors.find(name);
   if (it == m_colors.end())
   {
     LOG(LWARNING, ("Requested color '" + name + "' is not found"));