diff --git a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
index a74f17a26..88ebc43c7 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
@@ -160,7 +160,6 @@ public void validate() {
         final Collection<String> ignore = new HashSet<>(Arrays.asList(
             "mandatory-home",
             "name-outside-of-abstract-object",
-//            "mandatory-version",
             "empty-object",
             "incorrect-package",
             "object-does-not-match-filename"