diff --git a/atlas/models.py b/atlas/models.py
index cfaf9a6b..62792ba7 100644
--- a/atlas/models.py
+++ b/atlas/models.py
@@ -240,7 +240,7 @@ class Case(models.Model):
 
     def __str__(self):
         examinations = [series.get_examination() for series in self.series.all()]
-        return f"{self.pk}:{self.title} {'/'.join(self.condition.all())}, {', '.join(examinations)}"
+        return f"{self.pk}:{self.title} {'/'.join(c for c in self.condition.all())}, {', '.join(examinations)}"
 
 
 class SeriesImage(models.Model):