diff --git a/plot_types/basic/fill_between.py b/plot_types/basic/fill_between.py
index afe59824aaea..a454c3c30772 100644
--- a/plot_types/basic/fill_between.py
+++ b/plot_types/basic/fill_between.py
@@ -20,8 +20,8 @@
 # plot
 fig, ax = plt.subplots()
 
-plt.fill_between(x, y1, y2, alpha=.5, linewidth=0)
-plt.plot(x, (y1 + y2)/2, linewidth=2)
+ax.fill_between(x, y1, y2, alpha=.5, linewidth=0)
+ax.plot(x, (y1 + y2)/2, linewidth=2)
 
 ax.set(xlim=(0, 8), xticks=np.arange(1, 8),
        ylim=(0, 8), yticks=np.arange(1, 8))