diff --git a/src/Network/Probe.php b/src/Network/Probe.php
index 6e7e21d1e9..569e57381e 100644
--- a/src/Network/Probe.php
+++ b/src/Network/Probe.php
@@ -447,6 +447,7 @@ class Probe
 				// When the contact doesn't exist, the value "true" will trigger an insert
 				if (!$old_fields) {
 					$old_fields = true;
+					$fields['blocked'] = false;
 				}
 
 				dba::update('contact', $fields, $condition, $old_fields);