diff --git a/src/EditableSpamProtectionField.php b/src/EditableSpamProtectionField.php
index 5b0c47b..0331f1c 100644
--- a/src/EditableSpamProtectionField.php
+++ b/src/EditableSpamProtectionField.php
@@ -3,7 +3,6 @@
 namespace SilverStripe\SpamProtection;
 
 use SilverStripe\Core\ClassInfo;
-use SilverStripe\Core\Convert;
 use SilverStripe\Core\Manifest\ModuleLoader;
 use SilverStripe\Forms\DropdownField;
 use SilverStripe\Forms\FieldGroup;