diff --git a/src/ObjWriting/Material/JsonMaterialWriter.cpp.template b/src/ObjWriting/Material/JsonMaterialWriter.cpp.template
index 6a0a2639..56434fe3 100644
--- a/src/ObjWriting/Material/JsonMaterialWriter.cpp.template
+++ b/src/ObjWriting/Material/JsonMaterialWriter.cpp.template
@@ -64,6 +64,7 @@ namespace
             CreateJsonMaterial(jsonMaterial, material);
             json jRoot = jsonMaterial;
 
+            jRoot["$schema"] = "https://openassettools.dev/schema/material.v1.json";
             jRoot["_type"] = "material";
             jRoot["_version"] = 1;
             jRoot["_game"] = GAME_LOWER;
diff --git a/test/ObjWritingTests/Game/IW3/Material/DumperMaterialIW3Test.cpp b/test/ObjWritingTests/Game/IW3/Material/DumperMaterialIW3Test.cpp
index 42871ad2..cc9d34c1 100644
--- a/test/ObjWritingTests/Game/IW3/Material/DumperMaterialIW3Test.cpp
+++ b/test/ObjWritingTests/Game/IW3/Material/DumperMaterialIW3Test.cpp
@@ -317,6 +317,7 @@ namespace
     {
         std::string expected(R"MATERIAL(
 {
+    "$schema": "https://openassettools.dev/schema/material.v1.json",
     "_game": "iw3",
     "_type": "material",
     "_version": 1,
diff --git a/test/ObjWritingTests/Game/IW4/Material/DumperMaterialIW4Test.cpp b/test/ObjWritingTests/Game/IW4/Material/DumperMaterialIW4Test.cpp
index 7f44b08e..ca7e7881 100644
--- a/test/ObjWritingTests/Game/IW4/Material/DumperMaterialIW4Test.cpp
+++ b/test/ObjWritingTests/Game/IW4/Material/DumperMaterialIW4Test.cpp
@@ -295,6 +295,7 @@ namespace
     {
         std::string expected(R"MATERIAL(
 {
+    "$schema": "https://openassettools.dev/schema/material.v1.json",
     "_game": "iw4",
     "_type": "material",
     "_version": 1,
diff --git a/test/ObjWritingTests/Game/IW5/Material/DumperMaterialIW5Test.cpp b/test/ObjWritingTests/Game/IW5/Material/DumperMaterialIW5Test.cpp
index 71b289d3..e2f0ec73 100644
--- a/test/ObjWritingTests/Game/IW5/Material/DumperMaterialIW5Test.cpp
+++ b/test/ObjWritingTests/Game/IW5/Material/DumperMaterialIW5Test.cpp
@@ -324,6 +324,7 @@ namespace
     {
         std::string expected(R"MATERIAL(
 {
+    "$schema": "https://openassettools.dev/schema/material.v1.json",
     "_game": "iw5",
     "_type": "material",
     "_version": 1,
diff --git a/test/ObjWritingTests/Game/T5/Material/DumperMaterialT5Test.cpp b/test/ObjWritingTests/Game/T5/Material/DumperMaterialT5Test.cpp
index 2e6d1999..e69b73bc 100644
--- a/test/ObjWritingTests/Game/T5/Material/DumperMaterialT5Test.cpp
+++ b/test/ObjWritingTests/Game/T5/Material/DumperMaterialT5Test.cpp
@@ -297,6 +297,7 @@ namespace
     {
         std::string expected(R"MATERIAL(
 {
+    "$schema": "https://openassettools.dev/schema/material.v1.json",
     "_game": "t5",
     "_type": "material",
     "_version": 1,
diff --git a/test/ObjWritingTests/Game/T6/Material/DumperMaterialT6Test.cpp b/test/ObjWritingTests/Game/T6/Material/DumperMaterialT6Test.cpp
index a8704d6d..7ad4f077 100644
--- a/test/ObjWritingTests/Game/T6/Material/DumperMaterialT6Test.cpp
+++ b/test/ObjWritingTests/Game/T6/Material/DumperMaterialT6Test.cpp
@@ -261,6 +261,7 @@ namespace
     {
         std::string expected(R"MATERIAL(
 {
+    "$schema": "https://openassettools.dev/schema/material.v1.json",
     "_game": "t6",
     "_type": "material",
     "_version": 1,