diff --git a/src/XamlStyler/DocumentProcessors/ElementDocumentProcessor.cs b/src/XamlStyler/DocumentProcessors/ElementDocumentProcessor.cs
index 2cc32348..53c9f6af 100644
--- a/src/XamlStyler/DocumentProcessors/ElementDocumentProcessor.cs
+++ b/src/XamlStyler/DocumentProcessors/ElementDocumentProcessor.cs
@@ -25,7 +25,7 @@ internal class ElementDocumentProcessor : IDocumentProcessor
         private readonly XmlEscapingService xmlEscapingService;
         private readonly IList<string> noNewLineElementsList;
         private readonly IList<string> firstLineAttributes;
-        private readonly string[] inlineCollections = { "TextBlock", "RichTextBlock", "Paragraph", "Run", "Span", "InlineUIContainer", "AnchoredBlock" };
+        private readonly string[] inlineCollections = { "Bold", "Italic", "Underline", "TextBlock", "RichTextBlock", "Paragraph", "Run", "Span", "InlineUIContainer", "AnchoredBlock" };
         private readonly string[] inlineTypes = { "Paragraph", "Run", "Span", "InlineUIContainer", "AnchoredBlock", "Hyperlink", "Bold", "Italic", "Underline", "LineBreak" };
 
         public ElementDocumentProcessor(
@@ -378,4 +378,4 @@ private bool IsNoLineBreakElement(string elementName)
             return this.noNewLineElementsList.Contains(elementName);
         }
     }
-}
\ No newline at end of file
+}