diff --git a/survey_tools.py b/survey_tools.py
index 2bc2158..8c79dd5 100644
--- a/survey_tools.py
+++ b/survey_tools.py
@@ -163,4 +163,4 @@ def update_survey_output(df, output_dir):
         master[current_survey_col] = current_profile[current_survey_col]
 
         # Export updated results
-        master.to_csv(csv_name)
+        master.to_csv(csv_name, index=False)