diff --git a/ops/restore-tests/check-restore-freshness.sh b/ops/restore-tests/check-restore-freshness.sh
index 0792f21..48dadfc 100755
--- a/ops/restore-tests/check-restore-freshness.sh
+++ b/ops/restore-tests/check-restore-freshness.sh
@@ -38,9 +38,13 @@ pg_header_ok() {
   if ! command -v pg_restore >/dev/null 2>&1; then
     # ohne Host-pg_restore: in laufendem Postgres-Container probieren
     if command -v docker >/dev/null 2>&1 && docker inspect postgresql17 >/dev/null 2>&1; then
-      docker exec -i postgresql17 pg_restore --list </"$path" >/dev/null 2>&1 && return 0
+      if docker exec -i postgresql17 pg_restore --list < "$path" >/dev/null 2>&1; then
+        return 0  # Header valide
+      else
+        return 1  # Header korrupt
+      fi
     fi
-    return 2  # nicht pruefbar
+    return 2  # nicht pruefbar (kein pg_restore, kein Container)
   fi
   pg_restore --list "$path" >/dev/null 2>&1
 }