diff --git a/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java b/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
index b5bb45d34..4c4c7e5d6 100644
--- a/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
+++ b/src/main/java/org/codelibs/fess/mylasta/action/FessMessages.java
@@ -257,7 +257,7 @@ public class FessMessages extends FessLabels {
     /** The key of the message: Confirm Password does not match. */
     public static final String ERRORS_invalid_confirm_password = "{errors.invalid_confirm_password}";
 
-    /** The key of the message: Crawler is running. The document cannot be deteled. */
+    /** The key of the message: Crawler is running. The document cannot be deleted. */
     public static final String ERRORS_cannot_delete_doc_because_of_running = "{errors.cannot_delete_doc_because_of_running}";
 
     /** The key of the message: Failed to delete document. */
@@ -1488,7 +1488,7 @@ public class FessMessages extends FessLabels {
     /**
      * Add the created action message for the key 'errors.cannot_delete_doc_because_of_running' with parameters.
      * <pre>
-     * message: Crawler is running. The document cannot be deteled.
+     * message: Crawler is running. The document cannot be deleted.
      * </pre>
      * @param property The property name for the message. (NotNull)
      * @return this. (NotNull)
diff --git a/src/main/resources/fess_message.properties b/src/main/resources/fess_message.properties
index 3bf3ac9a9..61c12d242 100644
--- a/src/main/resources/fess_message.properties
+++ b/src/main/resources/fess_message.properties
@@ -107,7 +107,7 @@ errors.failed_to_upload_badword_file=Failed to upload the Badword file.
 errors.invalid_str_is_included="{1}" in "{0}" is invalid.
 errors.blank_password=Password is required.
 errors.invalid_confirm_password=Confirm Password does not match.
-errors.cannot_delete_doc_because_of_running=Crawler is running. The document cannot be deteled.
+errors.cannot_delete_doc_because_of_running=Crawler is running. The document cannot be deleted.
 errors.failed_to_delete_doc_in_admin=Failed to delete document.
 
 errors.invalid_query_unknown=The given query has unknown condition.