diff --git a/Tests/LibWeb/Ref/reference/images/svg-maskContentUnits-ref.png b/Tests/LibWeb/Ref/reference/images/svg-maskContentUnits-ref.png
new file mode 100644
index 0000000000..aaef71743d
Binary files /dev/null and b/Tests/LibWeb/Ref/reference/images/svg-maskContentUnits-ref.png differ
diff --git a/Tests/LibWeb/Ref/reference/svg-maskContentUnits-ref.html b/Tests/LibWeb/Ref/reference/svg-maskContentUnits-ref.html
new file mode 100644
index 0000000000..cd3390e04c
--- /dev/null
+++ b/Tests/LibWeb/Ref/reference/svg-maskContentUnits-ref.html
@@ -0,0 +1,9 @@
+<style>
+  * {
+    margin: 0;
+  }
+  body {
+    background-color: white;
+  }
+</style>
+<img src="./images/svg-maskContentUnits-ref.png">
diff --git a/Tests/LibWeb/Ref/svg-maskContentUnits.html b/Tests/LibWeb/Ref/svg-maskContentUnits.html
new file mode 100644
index 0000000000..add44caa1a
--- /dev/null
+++ b/Tests/LibWeb/Ref/svg-maskContentUnits.html
@@ -0,0 +1,26 @@
+<svg width="200" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
+  <link rel="match" href="reference/svg-maskContentUnits-ref.html" />
+  <mask id="myMask1" maskContentUnits="userSpaceOnUse">
+    <rect fill="black" x="0" y="0" width="100%" height="100%" />
+    <circle fill="white" cx="50" cy="50" r="35" />
+  </mask>
+
+  <mask id="myMask2" maskContentUnits="objectBoundingBox">
+    <rect fill="black" x="0" y="0" width="100%" height="100%" />
+    <circle fill="white" cx=".5" cy=".5" r=".35" />
+  </mask>
+
+  <!-- Some reference rect to materialized the mask -->
+  <rect id="r1" x="0" y="0" width="45" height="45" />
+  <rect id="r2" x="0" y="55" width="45" height="45" />
+  <rect id="r3" x="55" y="55" width="45" height="45" />
+  <rect id="r4" x="55" y="0" width="45" height="45" />
+
+  <!-- The first 3 rect are masked with useSpaceOnUse units -->
+  <use mask="url(#myMask1)" href="#r1" fill="red" />
+  <use mask="url(#myMask1)" href="#r2" fill="red" />
+  <use mask="url(#myMask1)" href="#r3" fill="red" />
+
+  <!-- The last rect is masked with objectBoundingBox units -->
+  <use mask="url(#myMask2)" href="#r4" fill="red" />
+</svg>