diff --git a/scripts/import_markdown.py b/scripts/import_markdown.py
index 0c1b73e..6a7c74c 100644
--- a/scripts/import_markdown.py
+++ b/scripts/import_markdown.py
@@ -101,6 +101,9 @@ from app.core.qdrant_points import (
     delete_by_note,
 )
 
+from app.core.env_vars import get_collection_prefix
+
+
 # Type-Registry optional laden (no-op, falls nicht vorhanden)
 try:
     from app.core.type_registry import load_type_registry  # type: ignore
@@ -199,7 +202,7 @@ def main():
         print(json.dumps({"error": "vault_not_found", "path": str(vault_root)}))
         sys.exit(2)
 
-    prefix = args.prefix.strip() or os.environ.get("COLLECTION_PREFIX", "").strip() or "mindnet"
+    prefix = args.prefix.strip() or os.environ.get("COLLECTION_PREFIX", "").strip() or "mindnet" or get_collection_prefix(args.prefix)
     cfg = QdrantConfig.from_env(prefix=prefix)
     client = get_client(cfg)
     ensure_collections(client, cfg)