diff --git a/borgmatic/actions/compact.py b/borgmatic/actions/compact.py
index 1a0cea3d..7386d230 100644
--- a/borgmatic/actions/compact.py
+++ b/borgmatic/actions/compact.py
@@ -39,7 +39,7 @@ def run_compact(
             remote_path=remote_path,
             progress=compact_arguments.progress or config.get('progress'),
             cleanup_commits=compact_arguments.cleanup_commits,
-            threshold=compact_arguments.threshold,
+            threshold=compact_arguments.threshold or config.get('compact_threshold'),
         )
     else:  # pragma: nocover
         logger.info('Skipping compact (only available/needed in Borg 1.2+)')
diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index 86cc5255..a7c9fc4c 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -565,6 +565,12 @@ properties:
             not specified, borgmatic defaults to matching archives based on the
             archive_name_format (see above).
         example: sourcehostname
+    compact_threshold:
+        type: integer
+        description: |
+            Minimum saved space percentage threshold for compacting a segment,
+            defaults to 10.
+        example: 20
     checks:
         type: array
         items: