diff --git a/docs/data/joy/customization/right-to-left/RTLDemoJoy.js b/docs/data/joy/customization/right-to-left/RTLDemoJoy.js
index b76e488a3af029..f0f50905ed9111 100644
--- a/docs/data/joy/customization/right-to-left/RTLDemoJoy.js
+++ b/docs/data/joy/customization/right-to-left/RTLDemoJoy.js
@@ -14,7 +14,7 @@ const theme = extendTheme({
 });
 
 const cacheRtl = createCache({
-  key: 'muirtl',
+  key: 'joyrtl',
   stylisPlugins: [prefixer, rtlPlugin],
 });
 
diff --git a/docs/data/joy/customization/right-to-left/RTLDemoJoy.tsx b/docs/data/joy/customization/right-to-left/RTLDemoJoy.tsx
index b76e488a3af029..f0f50905ed9111 100644
--- a/docs/data/joy/customization/right-to-left/RTLDemoJoy.tsx
+++ b/docs/data/joy/customization/right-to-left/RTLDemoJoy.tsx
@@ -14,7 +14,7 @@ const theme = extendTheme({
 });
 
 const cacheRtl = createCache({
-  key: 'muirtl',
+  key: 'joyrtl',
   stylisPlugins: [prefixer, rtlPlugin],
 });