diff --git a/example/net/poettering/Calculator.errors.yaml b/example/net/poettering/Calculator.errors.yaml
index 730e2a3..b2f6ee3 100644
--- a/example/net/poettering/Calculator.errors.yaml
+++ b/example/net/poettering/Calculator.errors.yaml
@@ -1,3 +1,6 @@
 - name: DivisionByZero
   description: >
     An attempt to divide by zero was attempted.
+- name: PermissionDenied
+  description: >
+    The user does not have enough privileges to perform the operation.