diff --git a/one-offs/rewrite_rnaseq_matrix_symbols.py b/one-offs/rewrite_rnaseq_matrix_symbols.py
index fb155c7a..28d5f6f0 100644
--- a/one-offs/rewrite_rnaseq_matrix_symbols.py
+++ b/one-offs/rewrite_rnaseq_matrix_symbols.py
@@ -15,7 +15,7 @@
 
 with open("/opt/varwig2/input-files/matrices/RNA-seq_batch.age.corrected_PCsreg.txt", "r") as rna_f, \
         open("/opt/varwig2/input-files/matrices/RNA-seq_batch.age.corrected_PCsreg_symbol.txt", "w") as rna_w:
-    rna_w.write(next(rna_f) + "\n")  # copy header
+    rna_w.write(next(rna_f))  # copy header
     for row in tqdm(rna_f):
         if not row.strip():
             continue