diff --git a/reviewboard/scmtools/models.py b/reviewboard/scmtools/models.py
index 9b5bb5b56680279cf2bd2a2fb3827a0e27077007..46cd59fa3e943076027317fb3be907df2fb258ec 100644
--- a/reviewboard/scmtools/models.py
+++ b/reviewboard/scmtools/models.py
@@ -609,7 +609,7 @@ class Repository(models.Model):
             if e:
                 encodings.append(e)
 
-        return encodings or ['iso-5589-15']
+        return encodings or ['iso-8859-15']
 
     def clean(self):
         """Clean method for checking null unique_together constraints.