diff --git a/py/histogram.py b/py/histogram.py
index 49b715b..b9f0038 100755
--- a/py/histogram.py
+++ b/py/histogram.py
@@ -23,4 +23,5 @@ if __name__ == "__main__":
     n, bins, patches = ax.hist(x, num_bins, density=False)
     ax.set_xlabel("Access time [ns]")
     ax.set_ylabel("proportion of cases")
+    plt.savefig("access.png")
     plt.show()