diff --git a/acl/src/main/java/org/apache/rocketmq/acl/plain/PlainPermissionManager.java b/acl/src/main/java/org/apache/rocketmq/acl/plain/PlainPermissionManager.java
index 97bd6bc857859cbbcff185dd60e5094ea41ae8f2..245bd9e750310ce11a2d1f75b1bde8e1cdd0eb0f 100644
--- a/acl/src/main/java/org/apache/rocketmq/acl/plain/PlainPermissionManager.java
+++ b/acl/src/main/java/org/apache/rocketmq/acl/plain/PlainPermissionManager.java
@@ -134,7 +134,7 @@ public class PlainPermissionManager {
         Map<String, Object> aclAccessConfigMap = AclUtils.getYamlDataObject(fileHome + File.separator + fileName,
             Map.class);
         if (aclAccessConfigMap == null || aclAccessConfigMap.isEmpty()) {
-            throw new AclException(String.format("%s file not found or isEmpty", fileHome + File.separator + fileName));
+            throw new AclException(String.format("%s file not found or empty", fileHome + File.separator + fileName));
         }
         List<Map<String, Object>> accounts = (List<Map<String, Object>>) aclAccessConfigMap.get(AclConstants.CONFIG_ACCOUNTS);
         Map<String, Object> updateAccountMap = null;
@@ -223,7 +223,7 @@ public class PlainPermissionManager {
         Map<String, Object> aclAccessConfigMap = AclUtils.getYamlDataObject(fileHome + File.separator + fileName,
             Map.class);
         if (aclAccessConfigMap == null || aclAccessConfigMap.isEmpty()) {
-            throw new AclException(String.format("%s file not found or isEmpty", fileHome + File.separator + fileName));
+            throw new AclException(String.format("%s file not found or empty", fileHome + File.separator + fileName));
         }
         List<Map<String, Object>> accounts = (List<Map<String, Object>>) aclAccessConfigMap.get("accounts");
         if (accounts != null) {
@@ -257,7 +257,7 @@ public class PlainPermissionManager {
         Map<String, Object> aclAccessConfigMap = AclUtils.getYamlDataObject(fileHome + File.separator + fileName,
             Map.class);
         if (aclAccessConfigMap == null || aclAccessConfigMap.isEmpty()) {
-            throw new AclException(String.format("%s file not found or isEmpty", fileHome + File.separator + fileName));
+            throw new AclException(String.format("%s file not found or empty", fileHome + File.separator + fileName));
         }
         List<String> globalWhiteRemoteAddrList = (List<String>) aclAccessConfigMap.get(AclConstants.CONFIG_GLOBAL_WHITE_ADDRS);