diff --git a/bluesky/bluesky.php b/bluesky/bluesky.php
index 94d5cb319..dac95437e 100644
--- a/bluesky/bluesky.php
+++ b/bluesky/bluesky.php
@@ -463,7 +463,7 @@ function bluesky_jot_nets(array &$jotnets_fields)
 
 function bluesky_cron()
 {
-	$last = DI::keyValue()->get('bluesky_last_poll');
+	$last = (int)DI::keyValue()->get('bluesky_last_poll');
 
 	$poll_interval = intval(DI::config()->get('bluesky', 'poll_interval'));
 	if (!$poll_interval) {
diff --git a/tumblr/tumblr.php b/tumblr/tumblr.php
index 9b29deb31..4d5368b80 100644
--- a/tumblr/tumblr.php
+++ b/tumblr/tumblr.php
@@ -406,7 +406,7 @@ function tumblr_settings_post(array &$b)
 
 function tumblr_cron()
 {
-	$last = DI::keyValue()->get('tumblr_last_poll');
+	$last = (int)DI::keyValue()->get('tumblr_last_poll');
 
 	$poll_interval = intval(DI::config()->get('tumblr', 'poll_interval'));
 	if (!$poll_interval) {