diff --git a/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php b/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php
index 51a6751b5..de65a86c8 100755
--- a/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php
+++ b/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php
@@ -2193,6 +2193,10 @@ public function send_results() // phpcs:ignore PSR1.Methods.CamelCapsMethodName.
         $signatures_found = isset($spbc->data['scanner']['signatures_found']) ? $spbc->data['scanner']['signatures_found'] : [];
         $signatures_found = json_encode($signatures_found);
 
+        if ( is_null($signatures_count) && is_string($signatures_found) ) {
+            $signatures_count = count(json_decode($signatures_found, true));
+        }
+
         // API. Sending files scan result
         $result = API::method__security_mscan_logs(
             $key,