diff --git a/mlair/plotting/postprocessing_plotting.py b/mlair/plotting/postprocessing_plotting.py
index ce53f4c543b646dbabcbd806761491aec474106c..1e3ce12638b6433fe7283769ac353d2e8579618e 100644
--- a/mlair/plotting/postprocessing_plotting.py
+++ b/mlair/plotting/postprocessing_plotting.py
@@ -983,7 +983,11 @@ class PlotBootstrapSkillScore(AbstractPlotClass):
         """
 
         """
-        fig, ax = plt.subplots(figsize=(len(self._individual_vars)/2, 10))
+        number_of_vars = len(self._individual_vars)
+        if number_of_vars > 20:
+            fig, ax = plt.subplots(figsize=(number_of_vars/2, 10))
+        else:
+            fig, ax = plt.subplots()
         sns.boxplot(x=self._x_name, y="data", hue="ahead", data=self._data, ax=ax, whis=1., palette="Blues_d",
                     showmeans=True, meanprops={"markersize": 1, "markeredgecolor": "k"}, flierprops={"marker": "."})
         ax.axhline(y=0, color="grey", linewidth=.5)