diff --git a/include/caosdb/acm/permission_rule.h b/include/caosdb/acm/permission_rule.h
index a801af460a275be140b9e4507a76aea6b25dc72c..00d8e2a6c0073d4e4dff18ce0db6a9c812348fbf 100644
--- a/include/caosdb/acm/permission_rule.h
+++ b/include/caosdb/acm/permission_rule.h
@@ -29,9 +29,9 @@
 #ifndef CAOSDB_ACM_PERMISSION_RULE_H
 #define CAOSDB_ACM_PERMISSION_RULE_H
 
-#include <stddef.h>       // for size_t
+#include <stddef.h>      // for size_t
 #include <unordered_set> // for unordered_set
-#include <string> // for string
+#include <string>        // for string
 
 namespace caosdb::acm {
 
@@ -52,12 +52,13 @@ public:
   [[nodiscard]] auto GetPermission() const -> const std::string &;
 
   auto operator==(const PermissionRule &other) const -> bool;
+
 private:
   PermissionRuleImpl *impl;
 };
 
 struct HashPermissionRule {
-  auto operator()(const PermissionRule& rule) const -> size_t;
+  auto operator()(const PermissionRule &rule) const -> size_t;
 };
 
 using PermissionRules = std::unordered_set<PermissionRule, HashPermissionRule>;
diff --git a/src/caosdb/acm/permission_rule_impl.h b/src/caosdb/acm/permission_rule_impl.h
index 57cacee709b3cd9d6ed423b2513510ace491d033..b8e99f5efdce5c68081ec196ab2afbe67ad970a4 100644
--- a/src/caosdb/acm/permission_rule_impl.h
+++ b/src/caosdb/acm/permission_rule_impl.h
@@ -23,9 +23,9 @@
 #define CAOSDB_ACM_PERMISSION_RULE_IMPL_H
 
 #include "caosdb/acm/role.h"
-#include "caosdb/acm/v1alpha1/main.pb.h"          // for ListRolesRequest
-#include "caosdb/protobuf_helper.h"   // for ProtoMessageWrapper
-#include <utility> // for move
+#include "caosdb/acm/v1alpha1/main.pb.h" // for ListRolesRequest
+#include "caosdb/protobuf_helper.h"      // for ProtoMessageWrapper
+#include <utility>                       // for move
 
 namespace caosdb::acm {
 using caosdb::utility::ScalarProtoMessageWrapper;