diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
index 0a9796d7c..ba0fa18c2 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessLabels.java
@@ -3081,7 +3081,7 @@ public class FessLabels extends UserMessages {
     /** The key of the message: Crawler Indices */
     public static final String LABELS_clear_crawler_index = "{labels.clear_crawler_index}";
 
-    /** The key of the message: Clear .crawler Indices */
+    /** The key of the message: Clear Crawler Indices */
     public static final String LABELS_clear_crawler_index_button = "{labels.clear_crawler_index_button}";
 
     /** The key of the message: Diagnostic */
diff --git a/src/main/resources/fess_label.properties b/src/main/resources/fess_label.properties
index 2e4747a81..04ebdae5d 100644
--- a/src/main/resources/fess_label.properties
+++ b/src/main/resources/fess_label.properties
@@ -1018,7 +1018,7 @@ labels.maintenance_title_configuration=Maintenance
 labels.number_of_shards_for_doc=The number of shards
 labels.auto_expand_replicas_for_doc=Auto expand replicas
 labels.clear_crawler_index=Crawler Indices
-labels.clear_crawler_index_button=Clear .crawler Indices
+labels.clear_crawler_index_button=Clear Crawler Indices
 labels.diagnostic_logs=Diagnostic
 labels.download_diagnostic_logs_button=Download Logs
 labels.reload_doc_index=Reload Doc Index
diff --git a/src/main/resources/fess_label_en.properties b/src/main/resources/fess_label_en.properties
index 2e4747a81..04ebdae5d 100644
--- a/src/main/resources/fess_label_en.properties
+++ b/src/main/resources/fess_label_en.properties
@@ -1018,7 +1018,7 @@ labels.maintenance_title_configuration=Maintenance
 labels.number_of_shards_for_doc=The number of shards
 labels.auto_expand_replicas_for_doc=Auto expand replicas
 labels.clear_crawler_index=Crawler Indices
-labels.clear_crawler_index_button=Clear .crawler Indices
+labels.clear_crawler_index_button=Clear Crawler Indices
 labels.diagnostic_logs=Diagnostic
 labels.download_diagnostic_logs_button=Download Logs
 labels.reload_doc_index=Reload Doc Index
diff --git a/src/main/resources/fess_label_ja.properties b/src/main/resources/fess_label_ja.properties
index 5c9c4552e..316f23e36 100644
--- a/src/main/resources/fess_label_ja.properties
+++ b/src/main/resources/fess_label_ja.properties
@@ -1018,7 +1018,7 @@ labels.maintenance_title_configuration=メンテナンス
 labels.number_of_shards_for_doc=シャード数
 labels.auto_expand_replicas_for_doc=最大レプリカ数
 labels.clear_crawler_index=Crawlerインデックス
-labels.clear_crawler_index_button=.crawlerインデックスの削除
+labels.clear_crawler_index_button=クロール用インデックスの削除
 labels.diagnostic_logs=診断
 labels.download_diagnostic_logs_button=ログのダウンロード
 labels.reload_doc_index=ドキュメントインデックスのリロード
diff --git a/src/main/resources/fess_label_ko.properties b/src/main/resources/fess_label_ko.properties
index b4c1587f0..c2a188e4e 100644
--- a/src/main/resources/fess_label_ko.properties
+++ b/src/main/resources/fess_label_ko.properties
@@ -1018,7 +1018,7 @@ labels.maintenance_title_configuration=Maintenance
 labels.number_of_shards_for_doc=The number of shards
 labels.auto_expand_replicas_for_doc=Auto expand replicas
 labels.clear_crawler_index=Crawler Indices
-labels.clear_crawler_index_button=Clear .crawler Indices
+labels.clear_crawler_index_button=Clear Crawler Indices
 labels.diagnostic_logs=Diagnostic
 labels.download_diagnostic_logs_button=Download Logs
 labels.reload_doc_index=Reload Doc Index
diff --git a/src/main/resources/fess_label_ru.properties b/src/main/resources/fess_label_ru.properties
index ae1fe6b86..caefe06d9 100644
--- a/src/main/resources/fess_label_ru.properties
+++ b/src/main/resources/fess_label_ru.properties
@@ -1022,7 +1022,7 @@ labels.maintenance_title_configuration=Maintenance
 labels.number_of_shards_for_doc=The number of shards
 labels.auto_expand_replicas_for_doc=Auto expand replicas
 labels.clear_crawler_index=Crawler Indices
-labels.clear_crawler_index_button=Clear .crawler Indices
+labels.clear_crawler_index_button=Clear Crawler Indices
 labels.diagnostic_logs=Diagnostic
 labels.download_diagnostic_logs_button=Download Logs
 labels.reload_doc_index=Reload Doc Index