diff --git a/pomodoro_to_harvest.py b/pomodoro_to_harvest.py
index eef4e13..ac4990c 100644
--- a/pomodoro_to_harvest.py
+++ b/pomodoro_to_harvest.py
@@ -21,7 +21,7 @@ for filename in all_files:
 
 timelog = pd.concat(li, axis=0, ignore_index=True)
 
-timelog = timelog.dropduplicates(inplace=True)
+timelog.drop_duplicates(inplace=True)
 
 # Dump bad data.  The real solution here is to get rid of the damned 'Cancel'
 # button on the Pomodoro Prompt dialog, but i don't know how to do that, so we