diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67e81f4..e99bbac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 This changelog references the relevant changes (bug and security fixes) done to `orchestra/support`.
 
+## 3.6.2
+
+Released: 2018-07-10
+
+### Fixes
+
+* Fixes `Orchestra\Support\Concerns\QueryFilter::buildWildcardForField()` to accept `Illuminate\Database\Query\Expression` as `$field` variable instead of casting it to `string`.
+
 ## 3.6.1
 
 Released: 2018-07-07
diff --git a/src/Support/Concerns/QueryFilter.php b/src/Support/Concerns/QueryFilter.php
index a28607a..16fbc73 100644
--- a/src/Support/Concerns/QueryFilter.php
+++ b/src/Support/Concerns/QueryFilter.php
@@ -129,12 +129,12 @@ protected function buildWildcardQueryFilters($query, array $fields, array $keywo
      * Build wildcard query filter for field using where or orWhere.
      *
      * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder  $query
-     * @param  string  $field
+     * @param  \Illuminate\Database\Query\Expression|string  $field
      * @param  array  $keyword
      *
      * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder
      */
-    protected function buildWildcardForField($query, string $field, array $keyword)
+    protected function buildWildcardForField($query, $field, array $keyword)
     {
         if ($field instanceof Expression) {
             return $this->buildWildcardForFieldUsing($query, $field->getValue(), $keyword, 'orWhere');