diff --git a/src/trees/treeseq.rs b/src/trees/treeseq.rs
index 704442b2..14935940 100644
--- a/src/trees/treeseq.rs
+++ b/src/trees/treeseq.rs
@@ -370,8 +370,8 @@ impl TreeSequence {
     /// - `Ok(Some(TableCollection))`: when trunction is successfully performed
     /// and results in non-empty edge table. The tables are sorted.
     /// - `Error(TskitError)`: Any errors from the C API propagate. An
-    /// [TskitError::RangeError] will occur when `intervals` are not
-    /// sorted.
+    ///    [TskitError::RangeError] will occur when `intervals` are not
+    ///    sorted.
     ///
     /// # Notes
     ///