diff --git a/kipubot/utils.py b/kipubot/utils.py
index d34da1c..4fb22fe 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -252,6 +252,8 @@ def generate_graph(out_img_path: str,
     px, nom, std, lpb, upb = fit_timedata(df['datenum'], df['amount'])
 
     # -- plot --
+    # clear previous plot in case of leftovers
+    plt.clf()
     ax = plt.gca()
     # plot data
     df['amount'][:-1].plot(ax=ax, marker='o', style='r', label='Pool')
@@ -289,6 +291,8 @@ def generate_expected(out_img_path: str,
     start_date, _, entry_fee, df = parse_expected(raffle_data)
 
     # -- plot --
+    # clear previous plot in case of leftovers
+    plt.clf()
     ax = plt.gca()
 
     df['next_expected'].plot(