diff --git a/charabia/src/segmenter/utils.rs b/charabia/src/segmenter/utils.rs
index 52c43b1..0ba3a75 100644
--- a/charabia/src/segmenter/utils.rs
+++ b/charabia/src/segmenter/utils.rs
@@ -59,7 +59,7 @@ impl<'fst> FstSegmenter<'fst> {
             // ensure the length is a valid character boundary
             length = to_segment
                 .char_indices()
-                .nth(length)
+                .find(|(idx, _)| idx >= length)
                 .map(|(idx, _)| idx)
                 .unwrap_or(to_segment.len());