diff --git a/atlas/models.py b/atlas/models.py
index 38108c52..a1c1dc9c 100644
--- a/atlas/models.py
+++ b/atlas/models.py
@@ -231,7 +231,7 @@ class Case(models.Model):
         return authors
 
     def get_link(self):
-        format_html("<a href='{}'>{}</a>", self.get_absolute_url(), self)
+        format_html("<a href='{}'>{}</a>", self.get_absolute_url(), str(self))
 
     def __str__(self):
         examinations = [series.get_examination() for series in self.series.all()]