diff --git a/helix-term/src/ui/prompt.rs b/helix-term/src/ui/prompt.rs
index ff4ca1fc..d2448335 100644
--- a/helix-term/src/ui/prompt.rs
+++ b/helix-term/src/ui/prompt.rs
@@ -779,8 +779,7 @@ impl Component for Prompt {
             col += self.line[self.cursor..]
                 .graphemes(true)
                 .next()
-                .unwrap()
-                .width();
+                .map_or(0, |g| g.width());
         }
 
         let line = area.height as usize - 1;