diff --git a/src/customfield/SprintEndDateField.php b/src/customfield/SprintEndDateField.php
index 49bffeacbf3c94f74f4dc502ff9b391bfbf41597..6eaac6e6c464a1fd79d4d23aa28c7094be1f53bc 100644
--- a/src/customfield/SprintEndDateField.php
+++ b/src/customfield/SprintEndDateField.php
@@ -20,6 +20,10 @@ final class SprintEndDateField extends SprintProjectCustomField {
     return 'isdc:sprint:enddate';
   }
 
+  public function getModernFieldKey() {
+    return 'enddate';
+  }
+
   public function getFieldName() {
     return 'Sprint End Date';
   }
diff --git a/src/customfield/SprintIsSprintField.php b/src/customfield/SprintIsSprintField.php
index 045b99d82bf0d18874a3f95d05058d364704a4da..145bf6c967cdea9a8cc27a2371429aebfe2087a4 100644
--- a/src/customfield/SprintIsSprintField.php
+++ b/src/customfield/SprintIsSprintField.php
@@ -14,6 +14,10 @@ final class SprintIsSprintField extends SprintProjectCustomField {
     return 'isdc:sprint:issprint';
   }
 
+  public function getModernFieldKey() {
+    return 'issprint';
+  }
+
   public function getFieldName() {
     return 'Is Sprint';
   }
diff --git a/src/customfield/SprintProjectCustomField.php b/src/customfield/SprintProjectCustomField.php
index 8761b9d7fe3ad555bbca64a53bf786ceba529299..6c8c77b91543b0c1c723c04e49bb58234e3d1b78 100644
--- a/src/customfield/SprintProjectCustomField.php
+++ b/src/customfield/SprintProjectCustomField.php
@@ -48,6 +48,7 @@ abstract class SprintProjectCustomField extends PhabricatorProjectCustomField
   public function getBoolFieldProxy($field, $name, $description) {
     $obj = clone $field;
     $fieldproxy = id(new PhabricatorStandardCustomFieldBool())
+
         ->setFieldKey($this->getFieldKey())
         ->setApplicationField($obj)
         ->setFieldConfig(array(
diff --git a/src/customfield/SprintTaskStoryPointsField.php b/src/customfield/SprintTaskStoryPointsField.php
index 1078a94feb6b910410299183b7f9df5c6b0be643..42a8ac0a985035991fdfad214af06653505640cd 100644
--- a/src/customfield/SprintTaskStoryPointsField.php
+++ b/src/customfield/SprintTaskStoryPointsField.php
@@ -33,6 +33,10 @@ final class SprintTaskStoryPointsField extends ManiphestCustomField
     return 'isdc:sprint:storypoints';
   }
 
+  public function getModernFieldKey() {
+    return 'storypoints';
+  }
+
   public function getFieldName() {
     return 'Story Points';
   }