diff --git a/slides/misc/moyal-plot.py b/slides/misc/moyal-plot.py
index a4da48f..617430c 100755
--- a/slides/misc/moyal-plot.py
+++ b/slides/misc/moyal-plot.py
@@ -11,10 +11,13 @@ def moyal(x, μ, σ):
 # plt.figure()
 plt.figure(figsize=(3, 2))
 plt.rcParams['font.size'] = 8
+plt.ylim = (-0.02, 0.23)
 
 # do plot
 x = np.arange(-10, 30, 0.01)
-plt.plot(x, moyal(x, 0, 1), color='#92182b')
+μ = -0.22278298
+σ = 1.1191486
+plt.plot(x, moyal(x, μ, σ), color='gray')
 
 # save fig
 plt.tight_layout()