diff --git a/endpoints/getting-started/openapi.yaml b/endpoints/getting-started/openapi.yaml
index 182e0636b3..634ef8b38d 100644
--- a/endpoints/getting-started/openapi.yaml
+++ b/endpoints/getting-started/openapi.yaml
@@ -94,9 +94,9 @@ securityDefinitions:
     flow: "implicit"
     type: "oauth2"
     # This must match the 'iss' field in the JWT.
-    x-issuer: "jwt-client.endpoints.sample.google.com"
+    x-google-issuer: "jwt-client.endpoints.sample.google.com"
     # Update this with your service account's email address.
-    x-jwks_uri: "https://www.googleapis.com/service_accounts/v1/jwk/YOUR-SERVICE-ACCOUNT-EMAIL"
+    x-google-jwks_uri: "https://www.googleapis.com/service_accounts/v1/jwk/YOUR-SERVICE-ACCOUNT-EMAIL"
   # This section configures authentication using Google OAuth2 ID Tokens.
   # ID Tokens can be obtained using OAuth2 clients, and can be used to access
   # your API on behalf of a particular user.
@@ -104,5 +104,5 @@ securityDefinitions:
     authorizationUrl: ""
     flow: "implicit"
     type: "oauth2"
-    x-issuer: "accounts.google.com"
-    x-jwks_uri: "https://www.googleapis.com/oauth2/v1/certs"
+    x-google-issuer: "accounts.google.com"
+    x-google-jwks_uri: "https://www.googleapis.com/oauth2/v1/certs"