diff --git a/versions/1.21.8/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java b/versions/1.21.8/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java
new file mode 100644
index 0000000..e34af31
--- /dev/null
+++ b/versions/1.21.8/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java
@@ -0,0 +1,10 @@
+package org.saturnclient.saturnclient;
+
+import org.saturnclient.client.player.SaturnPlayer;
+
+import net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey;
+
+public class SaturnRenderState {
+    public static RenderStateDataKey<SaturnPlayer> saturnDataKey = RenderStateDataKey
+            .create(() -> "saturn-client-player");
+}
diff --git a/versions/1.21.9/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java b/versions/1.21.9/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java
new file mode 100644
index 0000000..e34af31
--- /dev/null
+++ b/versions/1.21.9/src/main/java/org/saturnclient/saturnclient/SaturnRenderState.java
@@ -0,0 +1,10 @@
+package org.saturnclient.saturnclient;
+
+import org.saturnclient.client.player.SaturnPlayer;
+
+import net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey;
+
+public class SaturnRenderState {
+    public static RenderStateDataKey<SaturnPlayer> saturnDataKey = RenderStateDataKey
+            .create(() -> "saturn-client-player");
+}