diff --git a/MoreLinq/Flatten.cs b/MoreLinq/Flatten.cs
index 086ed2394..b2f5eb739 100644
--- a/MoreLinq/Flatten.cs
+++ b/MoreLinq/Flatten.cs
@@ -123,15 +123,15 @@ public static IEnumerable<
             static IEnumerable<
 // Just like "IEnumerable.Current" is null-oblivious, so is this:
 #nullable disable
-/*...................*/ object
+/*..........................*/ object
 #nullable restore
-/*.........................*/ > _(IEnumerable source,
-                    Func<
+/*.................................*/ > _(IEnumerable source,
+                                          Func<
 // Just like "IEnumerable.Current" is null-oblivious, so is this:
 #nullable disable
-/*....................*/ object,
+/*..........................................*/ object,
 #nullable restore
-/*........................*/ IEnumerable?> selector)
+/*..................................................*/ IEnumerable?> selector)
             {
                 var e = source.GetEnumerator();
                 var stack = new Stack<IEnumerator>();