diff --git a/hermes_cli/kanban.py b/hermes_cli/kanban.py
index 76f95db4fac..b4024e2e70e 100644
--- a/hermes_cli/kanban.py
+++ b/hermes_cli/kanban.py
@@ -1403,7 +1403,7 @@ def _cmd_diagnostics(args: argparse.Namespace) -> int:
         sev = getattr(args, "severity", None)
         if sev:
             for tid in list(diags_by_task.keys()):
-                kept = [d for d in diags_by_task[tid] if d.severity == sev]
+                kept = [d for d in diags_by_task[tid] if kd.SEVERITY_ORDER.index(d.severity) >= kd.SEVERITY_ORDER.index(sev)]
                 if kept:
                     diags_by_task[tid] = kept
                 else: