diff --git a/plot_transmission_timeline.py b/plot_transmission_timeline.py
index f78ddff..63166c0 100755
--- a/plot_transmission_timeline.py
+++ b/plot_transmission_timeline.py
@@ -217,6 +217,7 @@ if __name__ == "__main__":
     plot_cdf(transmission_df, "goodput")
     plt.xlabel("goodput [mbps]")
     plt.ylabel("CDF")
+    plt.legend(["BBR"])
 
     if args.save:
         plt.savefig("{}{}_cdf_plot.pdf".format(args.save, "goodput"))