diff --git a/airflow/api_connexion/openapi/v1.yaml b/airflow/api_connexion/openapi/v1.yaml
index 41d469cd207ec..8621c4422a9f0 100644
--- a/airflow/api_connexion/openapi/v1.yaml
+++ b/airflow/api_connexion/openapi/v1.yaml
@@ -2284,7 +2284,7 @@ paths:
                 properties:
                   content:
                     type: string
-            plain/text:
+            text/plain:
               schema:
                 type: string
 
diff --git a/airflow/www/static/js/types/api-generated.ts b/airflow/www/static/js/types/api-generated.ts
index cd602384b8461..cba302dfd75b6 100644
--- a/airflow/www/static/js/types/api-generated.ts
+++ b/airflow/www/static/js/types/api-generated.ts
@@ -4931,7 +4931,7 @@ export interface operations {
           "application/json": {
             content?: string;
           };
-          "plain/text": string;
+          "text/plain": string;
         };
       };
       401: components["responses"]["Unauthenticated"];