diff --git a/src/CSharp/CSharp/Extensions/SyntaxExtensions.cs b/src/CSharp/CSharp/Extensions/SyntaxExtensions.cs
index 04d3eb52e6..8556a5318d 100644
--- a/src/CSharp/CSharp/Extensions/SyntaxExtensions.cs
+++ b/src/CSharp/CSharp/Extensions/SyntaxExtensions.cs
@@ -3223,6 +3223,8 @@ internal static bool IsPartOfDocumentationComment(this SyntaxNode node)
                 case SyntaxKind.IfDirectiveTrivia:
                 case SyntaxKind.ElifDirectiveTrivia:
                 case SyntaxKind.WhenClause:
+                case SyntaxKind.BaseConstructorInitializer:
+                case SyntaxKind.ThisConstructorInitializer:
                     {
                         return false;
                     }