diff --git a/pumpio/pumpio.php b/pumpio/pumpio.php
index 759b11fd..470c1f27 100644
--- a/pumpio/pumpio.php
+++ b/pumpio/pumpio.php
@@ -919,7 +919,7 @@ function pumpio_dolike(App $a, int $uid, array $self, $post, string $own_id, $th
 	$likedata = [];
 	$likedata['parent'] = $orig_post['id'];
 	$likedata['verb'] = Activity::LIKE;
-	$likedata['gravity'] = GRAVITY_ACTIVITY;
+	$likedata['gravity'] = Item::GRAVITY_ACTIVITY;
 	$likedata['uid'] = $uid;
 	$likedata['wall'] = 0;
 	$likedata['network'] = Protocol::PUMPIO;
diff --git a/twitter/twitter.php b/twitter/twitter.php
index d2847a18..5f0d8c84 100644
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -1827,7 +1827,7 @@ function twitter_createpost(App $a, int $uid, $post, array $self, $create_user,
 
 		$item = Post::selectFirst(['uri'], ['uri' => $thr_parent, 'uid' => $uid]);
 		if (!DBA::isResult($item)) {
-			$item = Post::selectFirst(['uri'], ['extid' => $thr_parent, 'uid' => $uid, 'gravity' => GRAVITY_COMMENT]);
+			$item = Post::selectFirst(['uri'], ['extid' => $thr_parent, 'uid' => $uid, 'gravity' => Item::GRAVITY_COMMENT]);
 		}
 
 		if (DBA::isResult($item)) {
@@ -1948,7 +1948,7 @@ function twitter_createpost(App $a, int $uid, $post, array $self, $create_user,
 
 			// CHange the other post into a reshare activity
 			$postarray['verb'] = Activity::ANNOUNCE;
-			$postarray['gravity'] = GRAVITY_ACTIVITY;
+			$postarray['gravity'] = Item::GRAVITY_ACTIVITY;
 			$postarray['object-type'] = Activity\ObjectType::NOTE;
 
 			$postarray['thr-parent'] = $retweet['uri'];