diff --git a/src/GmailFilter.php b/src/GmailFilter.php
index e7d668e..11e5e15 100644
--- a/src/GmailFilter.php
+++ b/src/GmailFilter.php
@@ -180,6 +180,18 @@ class GmailFilter
         return $this;
     }
 
+    /**
+     * Mark a message to be trashed.
+     *
+     * @return $this
+     */
+    public function trash()
+    {
+        $this->trash = TRUE;
+
+        return $this;
+    }
+
     /**
      * Add a condition.
      *