diff --git a/jans-cedarling/bindings/cedarling_python/tests/test_authorize.py b/jans-cedarling/bindings/cedarling_python/tests/test_authorize.py
index e1915ae8bf8..b1e8971f1ce 100644
--- a/jans-cedarling/bindings/cedarling_python/tests/test_authorize.py
+++ b/jans-cedarling/bindings/cedarling_python/tests/test_authorize.py
@@ -187,7 +187,7 @@ def test_resource_entity_error():
     try:
         raise_authorize_error(load_bootstrap_config())
     except authorize_errors.BuildEntitiesError as e:
-        assert str(e) == "failed to build resource entity: type mismatch for key 'org_id'. expected: 'string', but found: 'number'"
+        assert str(e) == "failed to build resource entity: failed to build `org_id` attribute: failed to build restricted expression: type mismatch for key 'org_id'. expected: 'string', but found: 'number'"
 
 
 def test_authorize_error():
@@ -199,4 +199,4 @@ def test_authorize_error():
     try:
         raise_authorize_error(load_bootstrap_config())
     except authorize_errors.AuthorizeError as e:
-        assert str(e) == "failed to build resource entity: type mismatch for key 'org_id'. expected: 'string', but found: 'number'"
+        assert str(e) == "failed to build resource entity: failed to build `org_id` attribute: failed to build restricted expression: type mismatch for key 'org_id'. expected: 'string', but found: 'number'"
diff --git a/jans-cedarling/cedarling/src/authz/entity_builder/build_attrs.rs b/jans-cedarling/cedarling/src/authz/entity_builder/build_attrs.rs
index b1ca60276bb..e56471cdbb8 100644
--- a/jans-cedarling/cedarling/src/authz/entity_builder/build_attrs.rs
+++ b/jans-cedarling/cedarling/src/authz/entity_builder/build_attrs.rs
@@ -125,7 +125,7 @@ fn apply_claim_aliases(claims: &mut HashMap<String, Value>, aliases: Vec<ClaimAl
 }
 
 #[derive(Debug, thiserror::Error)]
-#[error("failed to build `{attr_name}` attribute: `{source}`")]
+#[error("failed to build `{attr_name}` attribute: {source}")]
 pub struct BuildAttrError {
     attr_name: String,
     #[source]