diff --git a/packages/core-app-api/src/app/AppThemeProvider.tsx b/packages/core-app-api/src/app/AppThemeProvider.tsx
index b2c800f673..5bc06e61e8 100644
--- a/packages/core-app-api/src/app/AppThemeProvider.tsx
+++ b/packages/core-app-api/src/app/AppThemeProvider.tsx
@@ -87,6 +87,9 @@ export function AppThemeProvider({ children }: PropsWithChildren<{}>) {
   if (!appTheme) {
     throw new Error('App has no themes');
   }
+  if (!appTheme.Provider) {
+    throw new Error('App has no theme provider');
+  }
 
   return <appTheme.Provider children={children} />;
 }