diff --git a/mlair/plotting/postprocessing_plotting.py b/mlair/plotting/postprocessing_plotting.py
index 578a71b4cc1c9a68c55aeabcba141ba9a59eb1af..5383914d6229e2c7017dada2bdcb9c315e327cf7 100644
--- a/mlair/plotting/postprocessing_plotting.py
+++ b/mlair/plotting/postprocessing_plotting.py
@@ -1196,10 +1196,10 @@ class PlotAvailabilityHistogram(AbstractPlotClass):
     2) data_availability_histogram_cumulative: number of samples (xaxis) vs. number of stations having at least number
        of samples (yaxis)
 
-       .. image:: ../../../../../_source/_plots/data_availability_histogram_hist.png
+    .. image:: ../../../../../_source/_plots/data_availability_histogram_hist.png
         :width: 400
 
-        .. image:: ../../../../../_source/_plots/data_availability_histogram_hist_cum.png
+    .. image:: ../../../../../_source/_plots/data_availability_histogram_hist_cum.png
         :width: 400
 
     """