diff --git a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
index dddfe80c0..89d1e3158 100644
--- a/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
+++ b/packages/openapi-ts/src/plugins/@hey-api/client-fetch/bundle/client.ts
@@ -143,14 +143,16 @@ export const createClient = (config: Config = {}): Client => {
           };
     }
 
-    let error = await response.text();
+    const textError = await response.text();
+    let jsonError: unknown;
 
     try {
-      error = JSON.parse(error);
+      jsonError = JSON.parse(textError);
     } catch {
       // noop
     }
 
+    const error = jsonError ?? textError;
     let finalError = error;
 
     for (const fn of interceptors.error._fns) {
diff --git a/packages/openapi-ts/src/plugins/@hey-api/client-next/bundle/client.ts b/packages/openapi-ts/src/plugins/@hey-api/client-next/bundle/client.ts
index 93cda6b98..cedbe50bf 100644
--- a/packages/openapi-ts/src/plugins/@hey-api/client-next/bundle/client.ts
+++ b/packages/openapi-ts/src/plugins/@hey-api/client-next/bundle/client.ts
@@ -128,14 +128,16 @@ export const createClient = (config: Config = {}): Client => {
       };
     }
 
-    let error = await response.text();
+    const textError = await response.text();
+    let jsonError: unknown;
 
     try {
-      error = JSON.parse(error);
+      jsonError = JSON.parse(textError);
     } catch {
       // noop
     }
 
+    const error = jsonError ?? textError;
     let finalError = error;
 
     for (const fn of interceptors.error._fns) {