diff --git a/example/example.cpp b/example/example.cpp
index 6381c463..56622e14 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -56,6 +56,8 @@ int main(int, char*[])
 
         // Create a daily logger - a new file is created every day on 2:30am
         auto daily_logger = spd::daily_logger_mt("daily_logger", "logs/daily", 2, 30);
+		// trigger flush if the log severity is error or higher
+		daily_logger->flush_on(spd::level::err);
         daily_logger->info(123.44);
 
         // Customize msg format for all messages
@@ -102,10 +104,7 @@ void async_example()
     size_t q_size = 4096; //queue size must be power of 2
     spdlog::set_async_mode(q_size);
     auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
-
-	// auto flush if the log severity is error or higher
-	async_file->flush_on(spd::level::err); 
-
+	
     for (int i = 0; i < 100; ++i)
         async_file->info("Async message #{}", i);
 }
diff --git a/include/spdlog/details/spdlog_impl.h b/include/spdlog/details/spdlog_impl.h
index fb4e6f84..b6c95825 100644
--- a/include/spdlog/details/spdlog_impl.h
+++ b/include/spdlog/details/spdlog_impl.h
@@ -36,36 +36,36 @@ inline void spdlog::drop(const std::string &name)
 }
 
 // Create multi/single threaded simple file logger
-inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_mt(const std::string& logger_name, const filename_t& filename, bool force_flush, bool truncate)
+inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_mt(const std::string& logger_name, const filename_t& filename, bool truncate)
 {
-    return create<spdlog::sinks::simple_file_sink_mt>(logger_name, filename, force_flush, truncate);
+    return create<spdlog::sinks::simple_file_sink_mt>(logger_name, filename, truncate);
 }
 
-inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_st(const std::string& logger_name, const filename_t& filename, bool force_flush, bool truncate)
+inline std::shared_ptr<spdlog::logger> spdlog::basic_logger_st(const std::string& logger_name, const filename_t& filename, bool truncate)
 {
-    return create<spdlog::sinks::simple_file_sink_st>(logger_name, filename, force_flush, truncate);
+    return create<spdlog::sinks::simple_file_sink_st>(logger_name, filename, truncate);
 }
 
 // Create multi/single threaded rotating file logger
-inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_mt(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files, bool force_flush)
+inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_mt(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files)
 {
-    return create<spdlog::sinks::rotating_file_sink_mt>(logger_name, filename, SPDLOG_FILENAME_T("txt"), max_file_size, max_files, force_flush);
+    return create<spdlog::sinks::rotating_file_sink_mt>(logger_name, filename, SPDLOG_FILENAME_T("txt"), max_file_size, max_files);
 }
 
-inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_st(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files, bool force_flush)
+inline std::shared_ptr<spdlog::logger> spdlog::rotating_logger_st(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files)
 {
-    return create<spdlog::sinks::rotating_file_sink_st>(logger_name, filename, SPDLOG_FILENAME_T("txt"), max_file_size, max_files, force_flush);
+    return create<spdlog::sinks::rotating_file_sink_st>(logger_name, filename, SPDLOG_FILENAME_T("txt"), max_file_size, max_files);
 }
 
 // Create file logger which creates new file at midnight):
-inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_mt(const std::string& logger_name, const filename_t& filename, int hour, int minute, bool force_flush)
+inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_mt(const std::string& logger_name, const filename_t& filename, int hour, int minute)
 {
-    return create<spdlog::sinks::daily_file_sink_mt>(logger_name, filename, SPDLOG_FILENAME_T("txt"), hour, minute, force_flush);
+    return create<spdlog::sinks::daily_file_sink_mt>(logger_name, filename, SPDLOG_FILENAME_T("txt"), hour, minute);
 }
 
-inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_st(const std::string& logger_name, const filename_t& filename, int hour, int minute, bool force_flush)
+inline std::shared_ptr<spdlog::logger> spdlog::daily_logger_st(const std::string& logger_name, const filename_t& filename, int hour, int minute)
 {
-    return create<spdlog::sinks::daily_file_sink_st>(logger_name, filename, SPDLOG_FILENAME_T("txt"), hour, minute, force_flush);
+    return create<spdlog::sinks::daily_file_sink_st>(logger_name, filename, SPDLOG_FILENAME_T("txt"), hour, minute);
 }
 
 // Create stdout/stderr loggers (with optinal color support)
diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index e2b8ba4b..495f72d0 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -71,20 +71,20 @@ void set_sync_mode();
 //
 // Create and register multi/single basic file logger
 //
-std::shared_ptr<logger> basic_logger_mt(const std::string& logger_name, const filename_t& filename,bool force_flush = false, bool truncate = false);
-std::shared_ptr<logger> basic_logger_st(const std::string& logger_name, const filename_t& filename, bool force_flush = false, bool truncate = false);
+std::shared_ptr<logger> basic_logger_mt(const std::string& logger_name, const filename_t& filename, bool truncate = false);
+std::shared_ptr<logger> basic_logger_st(const std::string& logger_name, const filename_t& filename, bool truncate = false);
 
 //
 // Create and register multi/single threaded rotating file logger
 //
-std::shared_ptr<logger> rotating_logger_mt(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files, bool force_flush = false);
-std::shared_ptr<logger> rotating_logger_st(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files, bool force_flush = false);
+std::shared_ptr<logger> rotating_logger_mt(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files);
+std::shared_ptr<logger> rotating_logger_st(const std::string& logger_name, const filename_t& filename, size_t max_file_size, size_t max_files);
 
 //
 // Create file logger which creates new file on the given time (default in  midnight):
 //
-std::shared_ptr<logger> daily_logger_mt(const std::string& logger_name, const filename_t& filename, int hour=0, int minute=0, bool force_flush = false);
-std::shared_ptr<logger> daily_logger_st(const std::string& logger_name, const filename_t& filename, int hour=0, int minute=0, bool force_flush = false);
+std::shared_ptr<logger> daily_logger_mt(const std::string& logger_name, const filename_t& filename, int hour=0, int minute=0);
+std::shared_ptr<logger> daily_logger_st(const std::string& logger_name, const filename_t& filename, int hour=0, int minute=0);
 
 //
 // Create and register stdout/stderr loggers