diff --git a/simulations/airshower_beacon_simulation/bc_baseline_phase_deltas.py b/simulations/airshower_beacon_simulation/bc_baseline_phase_deltas.py
index d3028c1..a3c067f 100755
--- a/simulations/airshower_beacon_simulation/bc_baseline_phase_deltas.py
+++ b/simulations/airshower_beacon_simulation/bc_baseline_phase_deltas.py
@@ -121,10 +121,10 @@ if __name__ == "__main__":
             if plot_residuals:
                 phase_residuals = lib.phase_mod(phase_diffs[:,1] - my_phase_diffs)
 
-                fig.suptitle("Difference between Measured and Actual phase difference\n for Baselines (i,j" + (')' if ref_ant_id is None else '='+str([ int(a.name) for a in ref_ants])+')'))
+                fig.suptitle("Difference between Measured and Actual phase difference\n for Baselines (i,j" + (')' if not ref_ant_id else '='+str([ int(a.name) for a in ref_ants])+')'))
                 axs[-1].set_xlabel("Baseline Phase Residual $\\Delta\\varphi_{ij_{meas}} - \\Delta\\varphi_{ij_{true}}$ [rad]")
             else:
-                fig.suptitle("Comparison Measured and Actual phase difference\n for Baselines (i,j"  + (')' if ref_ant_id is None else '='+str([ int(a.name) for a in ref_ants])+')'))
+                fig.suptitle("Comparison Measured and Actual phase difference\n for Baselines (i,j"  + (')' if not ref_ant_id else '='+str([ int(a.name) for a in ref_ants])+')'))
                 axs[-1].set_xlabel("Baseline Phase $\\Delta\\varphi_{ij}$ [rad]")