diff --git a/components/config/ConfigManager.cpp b/components/config/ConfigManager.cpp
index 386f0e4..d9c870f 100644
--- a/components/config/ConfigManager.cpp
+++ b/components/config/ConfigManager.cpp
@@ -76,7 +76,7 @@ esp_err_t ConfigManager::get_string(const char *key, std::string& out) const {
 
     size_t required_size; // get size of the string
     if (ret = nvs_get_str(config_handle, key, nullptr, &required_size); ret != ESP_OK) {
-        ESP_LOGE(TAG, "get_string failed to get string size");
+        ESP_LOGE(TAG, "get_string failed to get string size when reading %s", key);
         return ret;
     }