diff --git a/infra/stack.py b/infra/stack.py
index 448521d..b0d0d60 100644
--- a/infra/stack.py
+++ b/infra/stack.py
@@ -177,7 +177,7 @@ def _add_domain(self, userpool: cognito.UserPool) -> cognito.UserPoolDomain:
         CfnOutput(
             self,
             "cognito-domain",
-            export_name=f"{stack_name}-cognito_domain",
+            export_name=f"{stack_name}-cognito-domain",
             value=domain.base_url(),
         )