diff --git a/InvenTree/InvenTree/validators.py b/InvenTree/InvenTree/validators.py
index 36eda4d451..4fbcf44b1c 100644
--- a/InvenTree/InvenTree/validators.py
+++ b/InvenTree/InvenTree/validators.py
@@ -22,7 +22,7 @@ def validate_tree_name(value):
 
     for c in "!@#$%^&*'\"\\/[]{}<>,|+=~`\"":
         if c in str(value):
-            raise ValidationError({'name': _('Illegal character in name')})
+            raise ValidationError(_('Illegal character in name ({x})'.format(x=c)))
 
 
 def validate_overage(value):