diff --git a/plot.py b/plot.py
index 0bc05fb..6a85b49 100644
--- a/plot.py
+++ b/plot.py
@@ -64,7 +64,7 @@ rki_file = pd.read_excel(data_filename, sheet_name=None, engine='openpyxl')
 
 raw_data = rki_file['Impfungen_proTag']
 
-impfungen = raw_data[:-1].dropna(subset=['Datum'])#.fillna(0)
+impfungen = raw_data[:-1].dropna(subset=['Datum']).fillna(0)
 
 impfungen.drop(impfungen.tail(1).index,inplace=True) # remove Gesamt row