diff --git a/packages/x-data-grid-generator/src/services/prompt-resolver.ts b/packages/x-data-grid-generator/src/services/prompt-resolver.ts
index 41d27eb60cc08..f393593b5f876 100644
--- a/packages/x-data-grid-generator/src/services/prompt-resolver.ts
+++ b/packages/x-data-grid-generator/src/services/prompt-resolver.ts
@@ -2,7 +2,7 @@ import { unstable_PromptResponse as PromptResponse } from '@mui/x-data-grid-prem
 import { mockPrompts } from '../constants/prompts';
 
 export const mockPromptResolver = (_: string, query: string) => {
-  const resolved = mockPrompts.get(query);
+  const resolved = mockPrompts.get(query.toLowerCase().trim());
 
   return new Promise<PromptResponse>((resolve, reject) => {
     setTimeout(() => {