diff --git a/second-analysis-steps/ganga-scripting.md b/second-analysis-steps/ganga-scripting.md
index 4f370d74..defee1e1 100644
--- a/second-analysis-steps/ganga-scripting.md
+++ b/second-analysis-steps/ganga-scripting.md
@@ -271,7 +271,7 @@ def write_lfns(j, filename):
             lfns.append(df.lfn)
 
     with open(filename, 'w') as f:
-        f.writelfns('\n'.join(lfns))
+        f.write('\n'.join(lfns))
 ```
 
 How about downloading and merging the ROOT output of a job's subjobs? Write a helper!