diff --git a/resources/Materials/TestSuite/stdlib/procedural/linepatterns.mtlx b/resources/Materials/TestSuite/stdlib/procedural/linepatterns.mtlx
index 56808ede5a..032abf129d 100644
--- a/resources/Materials/TestSuite/stdlib/procedural/linepatterns.mtlx
+++ b/resources/Materials/TestSuite/stdlib/procedural/linepatterns.mtlx
@@ -12,6 +12,23 @@
     <input name="in1" type="color3" nodename="grid_color3" />
     <input name="in2" type="color3" nodename="crosshatch_color3" />
   </max>
+
+  <standard_surface name="SR_test_grid" type="surfaceshader">
+    <input name="base" type="float" value="1" />
+    <input name="base_color" type="color3" nodename="grid_color3" />
+  </standard_surface>
+  <surfacematerial name="test_grid" type="material">
+    <input name="surfaceshader" type="surfaceshader" nodename="SR_test_grid" />
+  </surfacematerial>
+
+  <standard_surface name="SR_test_crosshatch" type="surfaceshader">
+    <input name="base" type="float" value="1" />
+    <input name="base_color" type="color3" nodename="crosshatch_color3" />
+  </standard_surface>
+  <surfacematerial name="test_crosshatch" type="material">
+    <input name="surfaceshader" type="surfaceshader" nodename="SR_test_crosshatch" />
+  </surfacematerial>
+
   <standard_surface name="SR_test_union" type="surfaceshader">
     <input name="base" type="float" value="1" />
     <input name="base_color" type="color3" nodename="union_color3" />