diff --git a/sdgb-cli/src/main.rs b/sdgb-cli/src/main.rs
index c5ae129..6392933 100644
--- a/sdgb-cli/src/main.rs
+++ b/sdgb-cli/src/main.rs
@@ -223,6 +223,7 @@ async fn main() -> Result<(), Box<dyn snafu::Error>> {
             file.lock()?;
             let writer = BufWriter::new(file);
             serde_json::to_writer(writer, &user_ids)?;
+            info!("dumped {} user id", user_ids.len());
         }
 
         commands::Commands::Userdata { user_id } => {