diff --git a/pr_agent/settings/language_extensions.toml b/pr_agent/settings/language_extensions.toml
index bff5d53f..0cc31f0e 100644
--- a/pr_agent/settings/language_extensions.toml
+++ b/pr_agent/settings/language_extensions.toml
@@ -53,7 +53,8 @@ default = [
     'xz',
     'zip',
     'zst',
-    'snap'
+    'snap',
+    'lockb'
 ]
 extra = [
     'md',