diff --git a/src/Elasticsearch/Endpoints/AbstractEndpoint.php b/src/Elasticsearch/Endpoints/AbstractEndpoint.php
index 489cde5ce..703f021b0 100644
--- a/src/Elasticsearch/Endpoints/AbstractEndpoint.php
+++ b/src/Elasticsearch/Endpoints/AbstractEndpoint.php
@@ -175,7 +175,7 @@ public function setId($docID)
             $docID = (string) $docID;
         }
         
-        $this->id = urlencode($docID);
+        $this->id = rawurlencode($docID);
 
         return $this;
     }