diff --git a/05_courant_electrique.md b/05_courant_electrique.md
index d3f47755b05f7e5cc06b3f4daa427a2f33e02f8d..641e7cde752f8c296768d1176537e09d219a45fe 100644
--- a/05_courant_electrique.md
+++ b/05_courant_electrique.md
@@ -314,3 +314,13 @@ $$
 Et c'est une bonne nouvelle.
 
 ---
+
+## Le courant alternatif
+
+```{.matplotlib}
+import matplotlib.pyplot as plt
+
+plt.figure()
+plt.plot([0,1,2,3,4], [1,2,3,4,5])
+plt.title('This is an example figure')
+```
diff --git a/Makefile b/Makefile
index 08ea78ac1b8bb5af01cd29eb827211891b06fef3..d5a2acd49df8e2c4da375c3251c802db8b653ed0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 OPTIONS = --toc
+OPTIONS += --filter=pandoc-plot
 OPTIONS += --filter=pandoc-numbering
 OPTIONS += --filter=pandoc-crossref