diff --git a/src/main/java/org/codelibs/fess/app/web/api/ApiResult.java b/src/main/java/org/codelibs/fess/app/web/api/ApiResult.java
index 1040a3c22..8d354272c 100644
--- a/src/main/java/org/codelibs/fess/app/web/api/ApiResult.java
+++ b/src/main/java/org/codelibs/fess/app/web/api/ApiResult.java
@@ -150,11 +150,11 @@ public class ApiResult {
     }
 
     public static class ApiLogFilesResponse extends ApiResponse {
-        protected List<Map<String, Object>> logfiles;
+        protected List<Map<String, Object>> files;
         protected long total = 0;
 
-        public ApiLogFilesResponse logfiles(final List<Map<String, Object>> logfiles) {
-            this.logfiles = logfiles;
+        public ApiLogFilesResponse files(final List<Map<String, Object>> files) {
+            this.files = files;
             return this;
         }
 
@@ -169,16 +169,16 @@ public class ApiResult {
         }
     }
 
-    public static class ApiFilesResponse extends ApiResponse {
+    public static class ApiBackupFilesResponse extends ApiResponse {
         protected List<Map<String, String>> files;
         protected long total = 0;
 
-        public ApiFilesResponse backupfiles(final List<Map<String, String>> files) {
+        public ApiBackupFilesResponse files(final List<Map<String, String>> files) {
             this.files = files;
             return this;
         }
 
-        public ApiFilesResponse total(final long total) {
+        public ApiBackupFilesResponse total(final long total) {
             this.total = total;
             return this;
         }
diff --git a/src/main/java/org/codelibs/fess/app/web/api/admin/backup/ApiAdminBackupAction.java b/src/main/java/org/codelibs/fess/app/web/api/admin/backup/ApiAdminBackupAction.java
index 71febaa28..0a239b6ac 100644
--- a/src/main/java/org/codelibs/fess/app/web/api/admin/backup/ApiAdminBackupAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/api/admin/backup/ApiAdminBackupAction.java
@@ -36,7 +36,7 @@ import java.util.function.Consumer;
 import org.codelibs.elasticsearch.runner.net.Curl;
 import org.codelibs.elasticsearch.runner.net.CurlResponse;
 import org.codelibs.fess.app.web.api.ApiResult;
-import org.codelibs.fess.app.web.api.ApiResult.ApiFilesResponse;
+import org.codelibs.fess.app.web.api.ApiResult.ApiBackupFilesResponse;
 import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
 import org.codelibs.fess.mylasta.direction.FessConfig;
 import org.codelibs.fess.util.ComponentUtil;
@@ -57,7 +57,7 @@ public class ApiAdminBackupAction extends FessApiAdminAction {
     @Execute
     public JsonResponse<ApiResult> files() {
         final List<Map<String, String>> list = getBackupItems();
-        return asJson(new ApiFilesResponse().backupfiles(list).total(list.size()).status(ApiResult.Status.OK).result());
+        return asJson(new ApiBackupFilesResponse().files(list).total(list.size()).status(ApiResult.Status.OK).result());
     }
 
     // GET /api/admin/backup/file/{id}
diff --git a/src/main/java/org/codelibs/fess/app/web/api/admin/log/ApiAdminLogAction.java b/src/main/java/org/codelibs/fess/app/web/api/admin/log/ApiAdminLogAction.java
index 6c02437c8..a645c52ae 100644
--- a/src/main/java/org/codelibs/fess/app/web/api/admin/log/ApiAdminLogAction.java
+++ b/src/main/java/org/codelibs/fess/app/web/api/admin/log/ApiAdminLogAction.java
@@ -42,16 +42,16 @@ public class ApiAdminLogAction extends FessApiAdminAction {
     //                                                                      Search Execute
     //                                                                      ==============
 
-    // GET /api/admin/log/logfiles
+    // GET /api/admin/log/files
     @Execute
-    public JsonResponse<ApiResult> logfiles() {
+    public JsonResponse<ApiResult> files() {
         final List<Map<String, Object>> list = getLogFileItems();
-        return asJson(new ApiResult.ApiLogFilesResponse().logfiles(list).total(list.size()).status(ApiResult.Status.OK).result());
+        return asJson(new ApiResult.ApiLogFilesResponse().files(list).total(list.size()).status(ApiResult.Status.OK).result());
     }
 
-    // GET /api/admin/log/logfile/{id}
+    // GET /api/admin/log/file/{id}
     @Execute
-    public StreamResponse get$logfile(final String id) {
+    public StreamResponse get$file(final String id) {
         final String filename = new String(Base64.getDecoder().decode(id), StandardCharsets.UTF_8).replace("..", "").replaceAll("\\s", "");
         final String logFilePath = systemHelper.getLogFilePath();
         if (StringUtil.isNotBlank(logFilePath)) {