diff --git a/wled00/file.cpp b/wled00/file.cpp
index dcc2d57c4..5a169d645 100644
--- a/wled00/file.cpp
+++ b/wled00/file.cpp
@@ -188,6 +188,7 @@ static bool appendObjectToFile(const char* key, const JsonDocument* content, uin
   if (f.size() < 3) {
     char init[10];
     strcpy_P(init, PSTR("{\"0\":{}}"));
+    f.seek(0, SeekSet);           // rewind to ensure we overwrite from the start, instead of appending
     f.print(init);
   }