diff --git a/raft/README.md b/raft/README.md
index e881e36..45e8be3 100644
--- a/raft/README.md
+++ b/raft/README.md
@@ -9,7 +9,7 @@
 ## Vorbereiten des Retrieval-Corpus
 
 ```bash
-python prepare_corpus.py --input_tab ../data/intermediate/culture_reviews.csv --out_dir out
+python prepare_corpus.py --input_csv ../data/intermediate/culture_reviews.csv --out_dir out
 ```
 
 ## Erstellen des RAFT-Datensatzes
diff --git a/raft/prepare_corpus.py b/raft/prepare_corpus.py
index ca16eb2..88c05e9 100644
--- a/raft/prepare_corpus.py
+++ b/raft/prepare_corpus.py
@@ -48,13 +48,13 @@ def detect_text_col(df: pd.DataFrame) -> str:
             best_score = avg_len
             best_col = col
     if best_col is None:
-        raise ValueError("Could not detect a text column in the .tab file.")
+        raise ValueError("Could not detect a text column in the .csv file.")
     return best_col
 
 
 def main():
     ap = argparse.ArgumentParser()
-    ap.add_argument("--input_tab", required=True, help="Tripadvisor reviews .tab file")
+    ap.add_argument("--input_csv", required=True, help="Tripadvisor reviews .csv file")
     ap.add_argument("--out_dir", default="out")
     ap.add_argument(
         "--embedding_model", default="sentence-transformers/all-MiniLM-L6-v2"
@@ -65,11 +65,9 @@ def main():
 
     os.makedirs(args.out_dir, exist_ok=True)
 
-    # Many .tab files are TSV
-    df = pd.read_csv(args.input_tab, sep="\t", dtype=str, on_bad_lines="skip")
-    text_col = detect_text_col(df)
+    df = pd.read_csv(args.input_csv, sep=",", dtype=str, on_bad_lines="skip")
 
-    rows = df[text_col].fillna("").astype(str).tolist()
+    rows = df["Original"].fillna("").astype(str).tolist()
 
     corpus_path = os.path.join(args.out_dir, "corpus.jsonl")
     corpus = []
@@ -111,9 +109,7 @@ def main():
         for i, c in enumerate(corpus):
             f.write(json.dumps({"faiss_id": i, **c}, ensure_ascii=False) + "\n")
 
-    print(
-        f"Saved:\n- {corpus_path}\n- {faiss_path}\n- {mapping_path}\nText column detected: {text_col}"
-    )
+    print(f"Saved:\n- {corpus_path}\n- {faiss_path}\n- {mapping_path}")
 
 
 if __name__ == "__main__":