diff --git a/plot_transmission_timeline.py b/plot_transmission_timeline.py
index 80c77ee..e797247 100755
--- a/plot_transmission_timeline.py
+++ b/plot_transmission_timeline.py
@@ -268,6 +268,7 @@ if __name__ == "__main__":
     plot_cdf(transmission_df, "ack_rtt")
     plt.xlabel("ACK RTT [s]")
     plt.ylabel("CDF")
+    plt.yscale("log")
     plt.legend([cc_algo])
     plt.title("{} with {}".format(transmission_direction, cc_algo))