diff --git a/packages/ajax/src/Ajax.js b/packages/ajax/src/Ajax.js
index 967a82c93..4ea967bc5 100644
--- a/packages/ajax/src/Ajax.js
+++ b/packages/ajax/src/Ajax.js
@@ -193,7 +193,7 @@ export class Ajax {
 
     /** @type {any} */
     let body = responseText;
-    if (response.headers.get('content-type')?.includes('application/json')) {
+    if (response.headers.get('content-type')?.includes('json')) {
       try {
         body = JSON.parse(responseText);
       } catch (error) {