diff --git a/data/process.py b/data/process.py
index ba2c283..bd79313 100644
--- a/data/process.py
+++ b/data/process.py
@@ -189,7 +189,7 @@ def process_si(rows):
     # Write out result
     with open("nt/nutr_def.csv", "w+", encoding="utf-8") as _file:
         fieldnames = list(result[0].keys())
-        writer = csv.DictWriter(file, fieldnames=fieldnames, lineterminator="\n")
+        writer = csv.DictWriter(_file, fieldnames=fieldnames, lineterminator="\n")
         writer.writeheader()
         writer.writerows(result)