diff --git a/libs/log/include/psemek/log/log.hpp b/libs/log/include/psemek/log/log.hpp
index 07db955a..7deaa7f4 100644
--- a/libs/log/include/psemek/log/log.hpp
+++ b/libs/log/include/psemek/log/log.hpp
@@ -47,7 +47,7 @@ namespace psemek::log
 		virtual ~sink() {}
 	};
 
-	std::unique_ptr<sink> default_sink(std::unique_ptr<io::ostream> stream, level l);
+	std::unique_ptr<sink> default_sink(std::unique_ptr<io::ostream> stream, level min, level max);
 
 	sink * add_sink(std::unique_ptr<sink> s);
 	std::unique_ptr<sink> remove_sink(sink * s);
diff --git a/libs/log/source/log.cpp b/libs/log/source/log.cpp
index 1c6f5ca5..3ff85ec4 100644
--- a/libs/log/source/log.cpp
+++ b/libs/log/source/log.cpp
@@ -1,4 +1,5 @@
 #include <psemek/log/log.hpp>
+#include <psemek/util/to_string.hpp>
 
 #include <chrono>
 #include <ctime>
@@ -98,14 +99,15 @@ namespace psemek::log
 		struct default_sink_impl
 			: sink
 		{
-			default_sink_impl(std::unique_ptr<io::ostream> stream, level l)
+			default_sink_impl(std::unique_ptr<io::ostream> stream, level min, level max)
 				: stream_(std::move(stream))
-				, level_(l)
+				, min_(min)
+				, max_(max)
 			{}
 
 			void put_message(message const & msg) override
 			{
-				if (msg.level < level_) return;
+				if (msg.level < min_ || msg.level > max_) return;
 
 				auto const time = clock::to_time_t(msg.time);
 				auto const tm = safe_localtime(time);
@@ -130,7 +132,8 @@ namespace psemek::log
 
 		private:
 			std::unique_ptr<io::ostream> stream_;
-			level level_;
+			level min_;
+			level max_;
 		};
 
 	}
@@ -184,9 +187,9 @@ namespace psemek::log
 			put_message(level::info, "Thread \"" + name + "\" unregistered");
 	}
 
-	std::unique_ptr<sink> default_sink(std::unique_ptr<io::ostream> stream, level l)
+	std::unique_ptr<sink> default_sink(std::unique_ptr<io::ostream> stream, level min, level max)
 	{
-		return std::make_unique<default_sink_impl>(std::move(stream), l);
+		return std::make_unique<default_sink_impl>(std::move(stream), min, max);
 	}
 
 	sink * add_sink(std::unique_ptr<sink> s)
diff --git a/libs/sdl2/source/main.cpp b/libs/sdl2/source/main.cpp
index deea9985..db692325 100644
--- a/libs/sdl2/source/main.cpp
+++ b/libs/sdl2/source/main.cpp
@@ -22,7 +22,8 @@ int main(int argc, char ** argv) try
 	log::level const stdio_log_level = log::level::debug;
 #endif
 
-	log::add_sink(log::default_sink(io::std_out(), stdio_log_level));
+	log::add_sink(log::default_sink(io::std_out(), stdio_log_level, log::level::info));
+	log::add_sink(log::default_sink(io::std_err(), log::level::warning, log::level::error));
 	log::register_thread("main");
 
 	auto const factory = app::make_application_factory();