diff --git a/src/ESP32React/FSPersistence.h b/src/ESP32React/FSPersistence.h
index 299d943c2..d41e6b53d 100644
--- a/src/ESP32React/FSPersistence.h
+++ b/src/ESP32React/FSPersistence.h
@@ -70,6 +70,10 @@ class FSPersistence {
 
         // failed to open file, return false
         if (!settingsFile || !jsonObject.size()) {
+#if defined(EMSESP_DEBUG)
+            Serial.printf("Failed to write file %s", _filePath);
+            Serial.println();
+#endif
             return false;
         }