diff --git a/crates/g3-cli/src/tui.rs b/crates/g3-cli/src/tui.rs
index c1202c7..cf9629a 100644
--- a/crates/g3-cli/src/tui.rs
+++ b/crates/g3-cli/src/tui.rs
@@ -42,7 +42,7 @@ impl SimpleOutput {
     pub fn print_context(&self, used: u32, total: u32, percentage: f32) {
         let bar_width = 10;
         let filled_width = ((percentage / 100.0) * bar_width as f32) as usize;
-        let empty_width = bar_width - filled_width;
+        let empty_width = bar_width.saturating_sub(filled_width);
 
         let filled_chars = "●".repeat(filled_width);
         let empty_chars = "○".repeat(empty_width);