diff --git a/include/spdlog/async_logger-inl.h b/include/spdlog/async_logger-inl.h
index 51186537..13da5940 100644
--- a/include/spdlog/async_logger-inl.h
+++ b/include/spdlog/async_logger-inl.h
@@ -51,7 +51,7 @@ SPDLOG_INLINE void spdlog::async_logger::flush_()
         }
         else
         {
-          throw_spdlog_ex("async flush: thread pool doesn't exist anymore");
+            throw_spdlog_ex("async flush: thread pool doesn't exist anymore");
         }
     }
     SPDLOG_LOGGER_CATCH(source_loc())