diff --git a/internal/ui/completions/completions.go b/internal/ui/completions/completions.go
index ae130777a9278eb834f2eb544f630a4f51b8b212..e20076b267b1129830f848d5dbff66d869592954 100644
--- a/internal/ui/completions/completions.go
+++ b/internal/ui/completions/completions.go
@@ -182,6 +182,9 @@ func (c *Completions) updateSize() {
 	width := 0
 	for i := start; i <= end; i++ {
 		item := c.list.ItemAt(i)
+		if item == nil {
+			continue
+		}
 		s := item.(interface{ Text() string }).Text()
 		width = max(width, ansi.StringWidth(s))
 	}