diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index 2a5bb974d..f43b03ade 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -1402,7 +1402,7 @@ impl LanguageLayer {
                 &mut |byte, _| {
                     if byte <= source.len_bytes() {
                         let (chunk, start_byte, _, _) = source.chunk_at_byte(byte);
-                        chunk[byte - start_byte..].as_bytes()
+                        &chunk.as_bytes()[byte - start_byte..]
                     } else {
                         // out of range
                         &[]