diff --git a/tools/normalize_acl.py b/tools/normalize_acl.py
index 0f76febc90..e2d7a3cdf0 100755
--- a/tools/normalize_acl.py
+++ b/tools/normalize_acl.py
@@ -70,6 +70,7 @@ valid_keys = {'abandon',
               'forgeAuthor',
               'forgeCommitter',
               'function',
+              'inheritFrom',
               'label-Backport-Candidate',
               'label-Code-Review',
               'label-PTL-Approved',