diff --git a/Userland/Libraries/LibWeb/Layout/TextNode.cpp b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
index b53d42d5ea..ba766ec9f9 100644
--- a/Userland/Libraries/LibWeb/Layout/TextNode.cpp
+++ b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2022, Tobias Christiansen <tobyase@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -67,7 +68,19 @@ void TextNode::paint_text_decoration(Gfx::Painter& painter, LineBoxFragment cons
         return;
     }
 
-    painter.draw_line(line_start_point, line_end_point, computed_values().color());
+    switch (computed_values().text_decoration_style()) {
+        // FIXME: Implement the other styles
+    case CSS::TextDecorationStyle::Solid:
+    case CSS::TextDecorationStyle::Double:
+    case CSS::TextDecorationStyle::Dashed:
+    case CSS::TextDecorationStyle::Dotted:
+        painter.draw_line(line_start_point, line_end_point, computed_values().color());
+        break;
+    case CSS::TextDecorationStyle::Wavy:
+        // FIXME: There is a thing called text-decoration-thickness which also affects the amplitude here.
+        painter.draw_triangle_wave(line_start_point, line_end_point, computed_values().color(), 2);
+        break;
+    }
 }
 
 void TextNode::paint_fragment(PaintContext& context, const LineBoxFragment& fragment, PaintPhase phase) const