diff --git a/FDRS_Gateway/fdrs_functions.h b/FDRS_Gateway/fdrs_functions.h
index 0fc8b2e..dfe0a2a 100644
--- a/FDRS_Gateway/fdrs_functions.h
+++ b/FDRS_Gateway/fdrs_functions.h
@@ -207,7 +207,7 @@ void releaseLogBuffer()
   #endif
   #ifdef USE_FS_LOG
   DBG("Releasing Log buffer to internal flash.");
-  File logfile = LittleFS.open(filename, "a");
+  File logfile = LittleFS.open(FS_FILENAME, "a");
   logfile.print(logBuffer);
   logfile.close();
   #endif