diff --git a/app/tests/test_hub_update_boot_staging.py b/app/tests/test_hub_update_boot_staging.py
index 3e9e5bf..df92a81 100644
--- a/app/tests/test_hub_update_boot_staging.py
+++ b/app/tests/test_hub_update_boot_staging.py
@@ -6,8 +6,12 @@ HUB_NIX = Path(__file__).resolve().parents[2] / "modules" / "core" / "sovran-hub
 
 
 def _section(source: str, start: str, end: str) -> str:
-    start_idx = source.index(start)
-    end_idx = source.index(end, start_idx)
+    start_idx = source.find(start)
+    if start_idx == -1:
+        raise AssertionError(f"Expected section start not found: {start!r}")
+    end_idx = source.find(end, start_idx)
+    if end_idx == -1:
+        raise AssertionError(f"Expected section end not found: {end!r}")
     return source[start_idx:end_idx]
 
 
diff --git a/modules/core/sovran-hub.nix b/modules/core/sovran-hub.nix
index 12e9695..719d90f 100644
--- a/modules/core/sovran-hub.nix
+++ b/modules/core/sovran-hub.nix
@@ -146,7 +146,7 @@ let
     echo ""
 
     if [ "$RC" -eq 0 ]; then
-      echo "── Step 2/3: nixos-rebuild boot (stage next reboot) ─"
+      echo "── Step 2/3: nixos-rebuild boot (stage next reboot) ──"
       BOOT_OUT=$(nixos-rebuild boot --flake /etc/nixos --print-build-logs \
         --option connect-timeout 10 \
         --option stalled-download-timeout 90 \