diff --git a/src/Database/Table/Selection.php b/src/Database/Table/Selection.php
index 3914e343d..6f1d25b8a 100644
--- a/src/Database/Table/Selection.php
+++ b/src/Database/Table/Selection.php
@@ -905,12 +905,12 @@ public function getReferencedTable(ActiveRow $row, ?string $table, string $colum
 				}
 
 				$key = $row[$column];
-				$cacheKeys[$key] = TRUE;
+				$cacheKeys[] = $key;
 			}
 
 			if ($cacheKeys) {
 				$selection = $this->createSelectionInstance($table);
-				$selection->where($selection->getPrimary(), array_keys($cacheKeys));
+				$selection->where($selection->getPrimary(), $cacheKeys);
 			} else {
 				$selection = [];
 			}