diff --git a/rs-matter/src/data_model/cluster_on_off.rs b/rs-matter/src/data_model/cluster_on_off.rs
index 8d03d9b..8e23e61 100644
--- a/rs-matter/src/data_model/cluster_on_off.rs
+++ b/rs-matter/src/data_model/cluster_on_off.rs
@@ -54,7 +54,7 @@ pub const CLUSTER: Cluster<'static> = Cluster {
         Attribute::new(
             AttributesDiscriminants::OnOff as u16,
             Access::RV,
-            Quality::PERSISTENT,
+            Quality::SN,
         ),
     ],
     commands: &[
diff --git a/rs-matter/src/data_model/objects/attribute.rs b/rs-matter/src/data_model/objects/attribute.rs
index f22eb33..b31c1be 100644
--- a/rs-matter/src/data_model/objects/attribute.rs
+++ b/rs-matter/src/data_model/objects/attribute.rs
@@ -73,10 +73,12 @@ bitflags! {
     #[derive(Default)]
     pub struct Quality: u8 {
         const NONE = 0x00;
-        const SCENE = 0x01;
-        const PERSISTENT = 0x02;
-        const FIXED = 0x03;
-        const NULLABLE = 0x04;
+        const SCENE = 0x01;      // Short: S
+        const PERSISTENT = 0x02; // Short: N
+        const FIXED = 0x04;      // Short: F
+        const NULLABLE = 0x08;   // Short: X
+
+        const SN = Self::SCENE.bits | Self::PERSISTENT.bits;
     }
 }