diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index 482a3d485..08dd797d7 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -673,7 +673,7 @@ class HyperlinkedIdentityField(Field):
         except:
             pass
 
-        raise ValidationError('Could not resolve URL for field using view name "%s"', view_name)
+        raise ValidationError('Could not resolve URL for field using view name "%s"' % view_name)
 
 
 ##### Typed Fields #####