diff --git a/plot_single_transmission_EM9190.py b/plot_single_transmission_EM9190.py
index f882d23..dcd7dda 100755
--- a/plot_single_transmission_EM9190.py
+++ b/plot_single_transmission_EM9190.py
@@ -308,7 +308,7 @@ if __name__ == "__main__":
         ax00.set_ylabel("LTE/NR RSRQ [dB]")
         # ax02.set_ylabel("LTE RSRQ [dB]")
         ax1.set_ylabel("sRTT [s]")
-        ax0.set_ylabel("cwnd")
+        ax0.set_ylabel("cwnd [MSS]")
         ax01.set_ylabel("Bandwidth [MHz]")
 
         if args.fancy: