diff --git a/src/Database/Table/Selection.php b/src/Database/Table/Selection.php
index 7ca6d7e2c..490dc6b0b 100644
--- a/src/Database/Table/Selection.php
+++ b/src/Database/Table/Selection.php
@@ -821,7 +821,7 @@ public function insert($data)
 				? implode('.', array_map([$this->context->getConnection()->getSupplementalDriver(), 'delimite'], explode('.', $tmp)))
 				: NULL
 		);
-		if ($primaryKey === FALSE) {
+		if ($primaryKey === FALSE || $primaryKey === '0') {
 			unset($this->refCache['referencing'][$this->getGeneralCacheKey()][$this->getSpecificCacheKey()]);
 			return $return->getRowCount();
 		}