diff --git a/app/main.py b/app/main.py
index fead3e8..82e2c70 100644
--- a/app/main.py
+++ b/app/main.py
@@ -832,13 +832,25 @@ async def board(request: Request, owner: str, repo: str, milestone: str = ""):
     # A kanban:* label changed outside Kanbante wins over local state.
     _adopt_label_columns(full_name, open_issues, get_board_state(full_name))
 
+    # Closed issues stay visible while the board tracks them as done
+    # (reconcile_board_state moved their row). Merging open issues only
+    # made the "Terminé" column permanently empty.
+    done_numbers = {
+        c["issue_number"] for c in get_board_state(full_name).get("done", [])
+    }
+    closed_display = [
+        i
+        for i in issues
+        if i.get("state") != "open" and i["number"] in done_numbers
+    ]
+
     # Milestone view: filter the board to one milestone (sprint-style),
     # with its deadline and completion progress.
     milestones: list[dict] = []
     selected_milestone = None
     milestone_progress = None
     milestone_forecast = None
-    display_issues = open_issues
+    display_issues = open_issues + closed_display
     try:
         milestones = await gitea.get_milestones(owner, repo)
     except Exception as exc:  # milestones are decoration, never fatal
@@ -851,7 +863,7 @@ async def board(request: Request, owner: str, repo: str, milestone: str = ""):
                 str(ms.get("id")) == milestone or ms.get("title") == milestone
             )
 
-        display_issues = [i for i in open_issues if _in_milestone(i)]
+        display_issues = [i for i in display_issues if _in_milestone(i)]
         selected_milestone = next(
             (
                 m for m in milestones
@@ -941,7 +953,16 @@ def _board_columns_for(
     for number in changes["closed_numbers"]:
         log_event(full_name, number, "closed", to_column="done", source="gitea")
     _adopt_label_columns(full_name, open_issues, get_board_state(full_name))
-    display_issues = open_issues
+    board_state = get_board_state(full_name)
+    # Closed issues stay visible while the board tracks them as done
+    # (reconcile_board_state moved their row). Merging open issues only
+    # made the "Terminé" column permanently empty.
+    done_numbers = {c["issue_number"] for c in board_state.get("done", [])}
+    display_issues = open_issues + [
+        i
+        for i in issues
+        if i.get("state") != "open" and i["number"] in done_numbers
+    ]
     if milestone:
         def _in_ms(issue: dict) -> bool:
             ms = issue.get("milestone") or {}
@@ -949,8 +970,7 @@ def _board_columns_for(
                 str(ms.get("id")) == milestone or ms.get("title") == milestone
             )
 
-        display_issues = [i for i in open_issues if _in_ms(i)]
-    board_state = get_board_state(full_name)
+        display_issues = [i for i in display_issues if _in_ms(i)]
     columns = _merge_issues_with_board(display_issues, board_state)
     return columns, display_issues, board_state