diff --git a/include/spdlog/sinks/ostream_sink.h b/include/spdlog/sinks/ostream_sink.h
index e7816a78..5649b0b8 100644
--- a/include/spdlog/sinks/ostream_sink.h
+++ b/include/spdlog/sinks/ostream_sink.h
@@ -32,7 +32,9 @@ protected:
         sink::formatter_->format(msg, formatted);
         ostream_.write(formatted.data(), static_cast<std::streamsize>(formatted.size()));
         if (force_flush_)
+        {
             ostream_.flush();
+        }
     }
 
     void flush_() override