diff --git a/main/http_server/http_server.c b/main/http_server/http_server.c
index 5b7822cb..33dfd316 100644
--- a/main/http_server/http_server.c
+++ b/main/http_server/http_server.c
@@ -402,6 +402,8 @@ static esp_err_t GET_system_info(httpd_req_t * req)
     cJSON_AddStringToObject(root, "bestDiff", GLOBAL_STATE->SYSTEM_MODULE.best_diff_string);
     cJSON_AddStringToObject(root, "bestSessionDiff", GLOBAL_STATE->SYSTEM_MODULE.best_session_diff_string);
 
+    cJSON_AddNumberToObject(root, "isUsingFallbackStratum", GLOBAL_STATE->SYSTEM_MODULE.is_using_fallback);
+
     cJSON_AddNumberToObject(root, "freeHeap", esp_get_free_heap_size());
     cJSON_AddNumberToObject(root, "coreVoltage", nvs_config_get_u16(NVS_CONFIG_ASIC_VOLTAGE, CONFIG_ASIC_VOLTAGE));
     cJSON_AddNumberToObject(root, "coreVoltageActual", VCORE_get_voltage_mv(GLOBAL_STATE));