diff --git a/plot_single_transmission_EM9190.py b/plot_single_transmission_EM9190.py
index 4df2251..780a569 100755
--- a/plot_single_transmission_EM9190.py
+++ b/plot_single_transmission_EM9190.py
@@ -170,11 +170,11 @@ if __name__ == "__main__":
         ].fillna(0)
 
         transmission_df["lte_effective_bw_sum"] = (
-            transmission_df["LTE_SCC1_effective_bw"]
-            + transmission_df["LTE_SCC2_effective_bw"]
-            + transmission_df["LTE_SCC3_effective_bw"]
-            + transmission_df["LTE_SCC4_effective_bw"]
-            + transmission_df["LTE_bw"])
+            transmission_df["LTE_SCC1_effective_bw"].fillna(0)
+            + transmission_df["LTE_SCC2_effective_bw"].fillna(0)
+            + transmission_df["LTE_SCC3_effective_bw"].fillna(0)
+            + transmission_df["LTE_SCC4_effective_bw"].fillna(0)
+            + transmission_df["LTE_bw"].fillna(0))
         transmission_df["nr_effective_bw_sum"] = transmission_df["SCC1_NR5G_effective_bw"]
 
         transmission_df["effective_bw_sum"] = transmission_df["nr_effective_bw_sum"] + transmission_df["lte_effective_bw_sum"]