diff --git a/src/display/side_by_side.rs b/src/display/side_by_side.rs
index 910088e27..e1aa6d9e9 100644
--- a/src/display/side_by_side.rs
+++ b/src/display/side_by_side.rs
@@ -158,9 +158,11 @@ struct SourceDimensions {
     /// The number of characters required to display line numbers on
     /// the RHS.
     rhs_line_nums_width: usize,
-    /// The highest line number in the LHS source.
+    /// The highest line number in the LHS source that we will
+    /// display.
     lhs_max_line: LineNumber,
-    /// The highest line number in the RHS source.
+    /// The highest line number in the RHS source that we will
+    /// display.
     rhs_max_line: LineNumber,
 }