diff --git a/public/include/classes/statistics.class.php b/public/include/classes/statistics.class.php
index be101068..edbc24a0 100644
--- a/public/include/classes/statistics.class.php
+++ b/public/include/classes/statistics.class.php
@@ -311,7 +311,7 @@ class Statistics {
         AND a.id = ?
       GROUP BY HOUR(time)
     ");
-    if ($this->checkStmt($stmt) && $stmt->bind_param("ii", $account_id, $account_id) && $stmt->execute() && $result = $stmt->get_result())
+    if ($this->checkStmt($stmt) && $stmt->bind_param("i", $account_id) && $stmt->execute() && $result = $stmt->get_result())
       return $this->memcache->setCache(__FUNCTION__ . $account_id, $result->fetch_all(MYSQLI_ASSOC), 3600);
     // Catchall
     $this->debug->append("Failed to fetch hourly hashrate: " . $this->mysqli->error);