diff --git a/bilby/core/utils.py b/bilby/core/utils.py
index 16f30b90400fedc7e83f27fe4f3c86b26ad971cb..272cfdb2915334638064f425b7dee62cc6564eb6 100644
--- a/bilby/core/utils.py
+++ b/bilby/core/utils.py
@@ -1202,6 +1202,7 @@ def latex_plot_format(func):
 
 
 def safe_save_figure(fig, filename, **kwargs):
+    check_directory_exists_and_if_not_mkdir(os.path.dirname(filename))
     from matplotlib import rcParams
     try:
         fig.savefig(fname=filename, **kwargs)
diff --git a/bilby/gw/result.py b/bilby/gw/result.py
index 3ed3773da2cc9b5c455de2d1d65e17d9400b0779..1e106a50eea714a172df079dc36dccb11c06badd 100644
--- a/bilby/gw/result.py
+++ b/bilby/gw/result.py
@@ -867,7 +867,7 @@ class CompactBinaryCoalescenceResult(CoreResult):
                               deg2perpix).astype(int)
                 for i, p in zip(ii, pp):
                     text.append(
-                        u'{:d}% area: {:d} deg$^2$'.format(p, i, grouping=True))
+                        u'{:d}% area: {:d} deg$^2$'.format(p, i))
             ax.text(1, 1, '\n'.join(text), transform=ax.transAxes, ha='right')
 
         filename = os.path.join(self.outdir, "{}_skymap.png".format(self.label))
diff --git a/examples/core_examples/occam_factor_example.py b/examples/core_examples/occam_factor_example.py
index 7785a540f956db8886311dc67b308e0ab390b98d..319b988c0d2704b9fa9aff3d867bed6ce702ed99 100644
--- a/examples/core_examples/occam_factor_example.py
+++ b/examples/core_examples/occam_factor_example.py
@@ -109,8 +109,8 @@ log_evidences = []
 log_evidences_err = []
 log_occam_factors = []
 ns = range(1, 11)
-for l in ns:
-    e, e_err, o = fit(l)
+for ll in ns:
+    e, e_err, o = fit(ll)
     log_evidences.append(e)
     log_evidences_err.append(e_err)
     log_occam_factors.append(o)
diff --git a/test/result_test.py b/test/result_test.py
index 7ef0c4047b3b18842a39ccc5969a510139735925..422b42778a34c37aff44f132f433ace378208cb9 100644
--- a/test/result_test.py
+++ b/test/result_test.py
@@ -399,7 +399,7 @@ class TestResult(unittest.TestCase):
         self.assertEqual(len(self.result.posterior), len(self.result.prior_values))
 
     def test_plot_multiple(self):
-        filename = "multiple.png".format(self.result.outdir)
+        filename = "{}/multiple.png".format(self.result.outdir)
         bilby.core.result.plot_multiple([self.result, self.result], filename=filename)
         self.assertTrue(os.path.isfile(filename))
         os.remove(filename)