diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/snapshots/create/CreateSnapshotRequest.java b/server/src/main/java/org/opensearch/action/admin/cluster/snapshots/create/CreateSnapshotRequest.java
index dcd7ddc6674e0..63039ce7a921a 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/snapshots/create/CreateSnapshotRequest.java
+++ b/server/src/main/java/org/opensearch/action/admin/cluster/snapshots/create/CreateSnapshotRequest.java
@@ -71,7 +71,7 @@
  * <li>must not contain whitespace (tabs or spaces)</li>
  * <li>must not contain comma (',')</li>
  * <li>must not contain hash sign ('#')</li>
- * <li>must not start with underscore ('-')</li>
+ * <li>must not start with underscore ('_')</li>
  * <li>must be lowercase</li>
  * <li>must not contain invalid file name characters {@link org.opensearch.common.Strings#INVALID_FILENAME_CHARS} </li>
  * </ul>