diff --git a/build_tests/matplotlib_example.py b/build_tests/matplotlib_example.py
new file mode 100644
index 0000000..1331a20
--- /dev/null
+++ b/build_tests/matplotlib_example.py
@@ -0,0 +1,12 @@
+# This is the introductory example from
+# https://matplotlib.org/stable/tutorials/introductory/pyplot.html
+
+import matplotlib
+import matplotlib.pyplot as plt
+
+# Set up the gtk backend before running matplotlib.
+matplotlib.use("GTK3Agg")
+
+plt.plot([1, 2, 3, 4])
+plt.ylabel("some numbers")
+plt.show()