diff --git a/modules/salesforce_mapping/src/Plugin/Validation/Constraint/UniqueFieldsConstraintValidator.php b/modules/salesforce_mapping/src/Plugin/Validation/Constraint/UniqueFieldsConstraintValidator.php
index 655cf243cf41281ea95274b07bf3b69ea8f0da54..e943bca58881427642e7dbe9214f0e2c893b0075 100644
--- a/modules/salesforce_mapping/src/Plugin/Validation/Constraint/UniqueFieldsConstraintValidator.php
+++ b/modules/salesforce_mapping/src/Plugin/Validation/Constraint/UniqueFieldsConstraintValidator.php
@@ -41,7 +41,7 @@ class UniqueFieldsConstraintValidator extends ConstraintValidator {
         ->load($id);
       $url = $entity->toUrl();
       $message_replacements = [
-        '@entity_type' => $entity_type->getLowercaseLabel(),
+        '@entity_type' => $entity_type->getSingularLabel(),
         ':url' => $url->toString(),
         '@label' => $entity->label(),
       ];