diff --git a/src/CachedBuilder.php b/src/CachedBuilder.php
index 7166e50..fd073f8 100644
--- a/src/CachedBuilder.php
+++ b/src/CachedBuilder.php
@@ -35,6 +35,7 @@ protected function getCacheKey(array $columns = ['*'], $idColumn = null) : strin
 
     protected function getIdColumn(string $idColumn) : string
     {
+
         return $idColumn ? "_{$idColumn}" : '';
     }
 
@@ -72,13 +73,20 @@ protected function getQueryColumns(array $columns) : string
 
     protected function getWhereClauses() : string
     {
+        // dump($this->query->wheres);
         return collect($this->query->wheres)->reduce(function ($carry, $where) {
-            $value = $where['value'] ?? implode('_', ($where['values'] ?? []));
-
-            if (! $value) {
+            if (! $where['column'] ?? false) {
                 return $carry . '';
             }
 
+            $value = $where['value'] ?? '';
+
+            if ($where['values'] ??  false) {
+                $value .= 'in_' . implode('_', $where['values']);
+            }
+
+            $value = $where['type'] === 'Null' ? 'null' : $value;
+
             return "{$carry}-{$where['column']}_{$value}";
         }) ?: '';
     }