diff --git a/src/display.rs b/src/display.rs
index adb55db94..ca037f0b7 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -456,6 +456,7 @@ fn get_visible_width(input: &str, hyperlink: bool) -> usize {
         }
     }
 
+    // `UnicodeWidthStr::width` counts all unicode characters including escape '\u{1b}' and hyperlink '\x1B'
     UnicodeWidthStr::width(input) - nb_invisible_char
 }