diff --git a/scripts/auto-ingest-protocols.sh b/scripts/auto-ingest-protocols.sh
index 98713d7..658822f 100755
--- a/scripts/auto-ingest-protocols.sh
+++ b/scripts/auto-ingest-protocols.sh
@@ -40,7 +40,7 @@ echo "=== auto-ingest-protocols $(date -Iseconds) ==="
 # Hamburg hat keine vorhersagbare URL-Pattern (Blob-IDs + Hashes).
 # Stattdessen: Index-Seite scrapen, jedes gefundene PDF einzeln ingesten.
 echo "--- HH WP23 (Index-Scrape) ---"
-docker exec "$CONTAINER" python <<EOF
+docker exec -i "$CONTAINER" python <<EOF
 import re, sys
 import urllib.request
 import sqlite3
@@ -102,7 +102,7 @@ EOF
 # Hessen-Beschlussprotokoll-URL-Pattern hat Datum-Anteil DD-MM-YYYY,
 # daher Pattern via starweb-Index extrahieren statt vorzuhersagen.
 echo "--- HE WP21 (Index-Scrape) ---"
-docker exec "$CONTAINER" python <<'EOF'
+docker exec -i "$CONTAINER" python <<'EOF'
 import re, sys
 import urllib.request
 import sqlite3
@@ -162,7 +162,7 @@ EOF
 # ─── SH: Index-Page-Scrape (URL enthaelt Jahr + MM-YY-Suffix) ─────────
 # SH-URL hat Jahr-Pfad + MM-YY-Suffix, daher Index-Scrape.
 echo "--- SH WP20 (Index-Scrape) ---"
-docker exec "$CONTAINER" python <<'EOF'
+docker exec -i "$CONTAINER" python <<'EOF'
 import re, sys
 import urllib.request
 import sqlite3