diff --git a/schema.go b/schema.go
index 33f5b0b..2eab862 100644
--- a/schema.go
+++ b/schema.go
@@ -37,10 +37,9 @@ type Setting struct {
 }
 
 type Volume struct {
-	Name  string `yaml:"name"`
-	Path  string `yaml:"path"`
-	Class string `yaml:"class"`
-	Size  string `yaml:"size"`
+	Name string `yaml:"name"`
+	Path string `yaml:"path"`
+	Size string `yaml:"size"`
 }
 
 type Probes struct {
diff --git a/schema/README.md b/schema/README.md
index 9864d0b..954fbb3 100644
--- a/schema/README.md
+++ b/schema/README.md
@@ -4,4 +4,4 @@ A collection of configuration and settings for games available in the registry.
 
 ## Specification
 
-The [example specification](./example_specification.yml) can be followed to add your own games to the registry.
+The [example definition](./example_definition.yml) can be followed to add your own games to the registry.
diff --git a/schema/example_specification.yml b/schema/example_definition.yml
similarity index 100%
rename from schema/example_specification.yml
rename to schema/example_definition.yml
diff --git a/schema/garrys_mod.yaml b/schema/garrys_mod.yaml
index c0cab52..5632917 100644
--- a/schema/garrys_mod.yaml
+++ b/schema/garrys_mod.yaml
@@ -43,6 +43,5 @@ settings:
 volumes:
   - name: data
     path: "/gmod"
-    class: classic
     size: 10Gi
 probes: null
\ No newline at end of file
diff --git a/schema/minecraft_java.yaml b/schema/minecraft_java.yaml
index d861c1d..afb18ff 100644
--- a/schema/minecraft_java.yaml
+++ b/schema/minecraft_java.yaml
@@ -44,7 +44,6 @@ settings:
 volumes:
   - name: data
     path: "/data"
-    class: classic
     size: 10Gi
 probes:
   command:
diff --git a/schema/valheim.yaml b/schema/valheim.yaml
index a67637e..9280381 100644
--- a/schema/valheim.yaml
+++ b/schema/valheim.yaml
@@ -44,6 +44,5 @@ settings:
 volumes:
   - name: data
     path: "/data"
-    class: classic
     size: 10Gi
 probes: null
\ No newline at end of file
diff --git a/schema_test.go b/schema_test.go
index e111e08..911b567 100644
--- a/schema_test.go
+++ b/schema_test.go
@@ -76,10 +76,9 @@ var exampleSchema Schema = Schema{
 	},
 	Volumes: []Volume{
 		{
-			Name:  "data",
-			Path:  "/data",
-			Class: "classic",
-			Size:  "10Gi",
+			Name: "data",
+			Path: "/data",
+			Size: "10Gi",
 		},
 	},
 	Probes: Probes{