diff --git a/docs/en/rapport-pdf.md b/docs/en/rapport-pdf.md
index 5fee3a5..da30561 100644
--- a/docs/en/rapport-pdf.md
+++ b/docs/en/rapport-pdf.md
@@ -216,7 +216,7 @@ Collection reads PBS prune jobs through `/config/prune` and displays:
 - schedule;
 - active/inactive state;
 - columns `Last`, `Hourly`, `Daily`, `Weekly`, `Monthly`, `Yearly`;
-- `max-depth`.
+- computed depth, corresponding to the sum of configured `keep-last`, `keep-hourly`, `keep-daily`, `keep-weekly`, `keep-monthly` and `keep-yearly` values.
 
 A namespace missing in PBS is displayed as `/`, meaning the root namespace.
 
diff --git a/docs/fr/rapport-pdf.md b/docs/fr/rapport-pdf.md
index cfb83fb..3c8eb00 100644
--- a/docs/fr/rapport-pdf.md
+++ b/docs/fr/rapport-pdf.md
@@ -216,7 +216,7 @@ La collecte lit les prune jobs PBS via `/config/prune` et affiche :
 - planification ;
 - etat actif/inactif ;
 - colonnes `Derniere`, `Horaire`, `Jour`, `Semaine`, `Mois`, `Annee` ;
-- profondeur `max-depth`.
+- profondeur calculee, correspondant a la somme des valeurs `keep-last`, `keep-hourly`, `keep-daily`, `keep-weekly`, `keep-monthly` et `keep-yearly` renseignees.
 
 Une namespace absente dans PBS est affichee comme `/`, c'est-a-dire la namespace racine.
 
diff --git a/src/pve_backup_report/report_pdf.py b/src/pve_backup_report/report_pdf.py
index 9c8ee47..78a5e73 100644
--- a/src/pve_backup_report/report_pdf.py
+++ b/src/pve_backup_report/report_pdf.py
@@ -438,10 +438,25 @@ def retention_policy_row(policy: object) -> list[object]:
         getattr(policy, "keep_weekly", None),
         getattr(policy, "keep_monthly", None),
         getattr(policy, "keep_yearly", None),
-        getattr(policy, "max_depth", None),
+        display(retention_policy_depth(policy)),
     ]
 
 
+def retention_policy_depth(policy: object) -> int | None:
+    values = [
+        getattr(policy, "keep_last", None),
+        getattr(policy, "keep_hourly", None),
+        getattr(policy, "keep_daily", None),
+        getattr(policy, "keep_weekly", None),
+        getattr(policy, "keep_monthly", None),
+        getattr(policy, "keep_yearly", None),
+    ]
+    kept_versions = [value for value in values if isinstance(value, int)]
+    if not kept_versions:
+        return None
+    return sum(kept_versions)
+
+
 def add_backup_jobs(story: list[object], styles: dict[str, ParagraphStyle], report_data: ReportData) -> None:
     rows: list[list[object]] = [["ID", "Storage", "Horaire", "Actif", "Mode", "Selection", "Exclusion"]]
     for job in report_data.backup_jobs:
diff --git a/tests/test_report_pdf.py b/tests/test_report_pdf.py
index 6cb6c46..a0bdb5a 100644
--- a/tests/test_report_pdf.py
+++ b/tests/test_report_pdf.py
@@ -26,6 +26,7 @@ from pve_backup_report.report_pdf import format_last_backup
 from pve_backup_report.report_pdf import format_size
 from pve_backup_report.report_pdf import pbs_datastore_usage_row
 from pve_backup_report.report_pdf import pbs_access_user_row
+from pve_backup_report.report_pdf import retention_policy_depth
 from pve_backup_report.report_pdf import retention_policy_row
 from pve_backup_report.report_pdf import add_table_of_contents
 from pve_backup_report.report_pdf import unique_report_path
@@ -171,10 +172,32 @@ def test_retention_policy_row_splits_columns() -> None:
         8,
         3,
         1,
-        0,
+        "29",
     ]
 
 
+def test_retention_policy_depth_sums_keep_values() -> None:
+    policy = PbsRetentionPolicy(
+        policy_id="prune-prod",
+        server_name="PBS01",
+        keep_last=1,
+        keep_hourly=2,
+        keep_daily=14,
+        keep_weekly=8,
+        keep_monthly=3,
+        keep_yearly=1,
+        max_depth=0,
+    )
+
+    assert retention_policy_depth(policy) == 29
+
+
+def test_retention_policy_row_displays_unspecified_depth_without_keep_values() -> None:
+    policy = PbsRetentionPolicy(policy_id="prune-empty", server_name="PBS01", max_depth=0)
+
+    assert retention_policy_row(policy)[-1] == "non renseigne"
+
+
 def test_find_snapshot_summary_matches_storage_namespace_and_guest() -> None:
     guest = Guest(vmid=100, name="srv", guest_type="qemu")
     item = BackupCoverage(