diff --git a/scintillation/averaging.py b/scintillation/averaging.py
index 21f1925ce040c6dcf28c36b126adf689c3430fbe..d7b211b05f893ea1fd0ad22f64736b798cbbe174 100644
--- a/scintillation/averaging.py
+++ b/scintillation/averaging.py
@@ -286,7 +286,7 @@ def make_plot(data_array, time_axis, frequency_axis, station_name, plot_full_pat
     ax.set_xlim(
         [datetime(year=datetime_axis[0].year, month=datetime_axis[0].month, day=datetime_axis[0].day,
                   hour=datetime_axis[0].hour),
-         datetime(year=datetime_axis[-1].year, month=datetime_axis[-1].month, day=datetime_axis[-1].day + (datetime_axis[-1].hour + 1) // 24),
+         datetime(year=datetime_axis[-1].year, month=datetime_axis[-1].month, day=(datetime_axis[-1].day + (datetime_axis[-1].hour + 1) // 24),
                   hour=(datetime_axis[-1].hour + 1) % 24 )]
     )
     ax.set_xlabel('Time (UT)')