diff --git a/src/oca_github_bot/tasks/migration_issue_bot.py b/src/oca_github_bot/tasks/migration_issue_bot.py
index dfcaef48..c07328c1 100644
--- a/src/oca_github_bot/tasks/migration_issue_bot.py
+++ b/src/oca_github_bot/tasks/migration_issue_bot.py
@@ -34,7 +34,8 @@ def _check_line_issue(gh_pr_number, issue_body):
     regex = r"\#%s\b" % gh_pr_number
     for line in issue_body.split("\n"):
         if re.findall(regex, line):
-            lines.append(line[:3] + "x" + line[4:])
+            checked_line = line.replace("[ ]", "[x]", 1)
+            lines.append(checked_line)
             continue
         lines.append(line)
     return "\n".join(lines)