diff --git a/include/spdlog/async_logger-inl.h b/include/spdlog/async_logger-inl.h
index 60126cf0..db449d61 100644
--- a/include/spdlog/async_logger-inl.h
+++ b/include/spdlog/async_logger-inl.h
@@ -80,7 +80,11 @@ SPDLOG_INLINE void spdlog::async_logger::backend_flush_()
         {
             sink->flush();
         }
+#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
+        SPDLOG_LOGGER_CATCH(wstring_view_t())
+#else
         SPDLOG_LOGGER_CATCH(string_view_t())
+#endif
     }
 }
 
diff --git a/include/spdlog/logger-inl.h b/include/spdlog/logger-inl.h
index b6d02624..9d6e082e 100644
--- a/include/spdlog/logger-inl.h
+++ b/include/spdlog/logger-inl.h
@@ -203,7 +203,11 @@ SPDLOG_INLINE void logger::flush_()
         {
             sink->flush();
         }
+#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
+        SPDLOG_LOGGER_CATCH(wstring_view_t())
+#else
         SPDLOG_LOGGER_CATCH(string_view_t())
+#endif
     }
 }