diff --git a/library/Requests/Transport/cURL.php b/library/Requests/Transport/cURL.php
index 36cba510c..8ffcb1e5c 100644
--- a/library/Requests/Transport/cURL.php
+++ b/library/Requests/Transport/cURL.php
@@ -333,13 +333,6 @@ protected function setup_handle($url, $headers, $data, $options) {
 				curl_setopt($this->handle, CURLOPT_POST, true);
 				curl_setopt($this->handle, CURLOPT_POSTFIELDS, $data);
 				break;
-			case Requests::PATCH:
-			case Requests::PUT:
-			case Requests::DELETE:
-			case Requests::OPTIONS:
-				curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']);
-				curl_setopt($this->handle, CURLOPT_POSTFIELDS, $data);
-				break;
 			case Requests::HEAD:
 				curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']);
 				curl_setopt($this->handle, CURLOPT_NOBODY, true);
@@ -347,6 +340,15 @@ protected function setup_handle($url, $headers, $data, $options) {
 			case Requests::TRACE:
 				curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']);
 				break;
+			case Requests::PATCH:
+			case Requests::PUT:
+			case Requests::DELETE:
+			case Requests::OPTIONS:
+			default:
+				curl_setopt($this->handle, CURLOPT_CUSTOMREQUEST, $options['type']);
+				if (!empty($data)) {
+					curl_setopt($this->handle, CURLOPT_POSTFIELDS, $data);
+				}
 		}
 
 		// cURL requires a minimum timeout of 1 second when using the system
diff --git a/tests/Transport/Base.php b/tests/Transport/Base.php
index e9ca30f10..5ddce18c1 100644
--- a/tests/Transport/Base.php
+++ b/tests/Transport/Base.php
@@ -268,6 +268,23 @@ public function testDELETEWithData() {
 		$this->assertEquals(array('test' => 'true', 'test2' => 'test'), $result['args']);
 	}
 
+	public function testLOCK() {
+		$request = Requests::request(httpbin('/lock'), array(), array(), 'LOCK', $this->getOptions());
+		$this->assertEquals(200, $request->status_code);
+	}
+
+	public function testLOCKWithData() {
+		$data = array(
+			'test' => 'true',
+			'test2' => 'test',
+		);
+		$request = Requests::request(httpbin('/lock'), array(), $data, 'LOCK', $this->getOptions());
+		$this->assertEquals(200, $request->status_code);
+
+		$result = json_decode($request->body, true);
+		$this->assertEquals(array('test' => 'true', 'test2' => 'test'), $result['form']);
+	}
+
 	public function testRedirects() {
 		$request = Requests::get(httpbin('/redirect/6'), array(), $this->getOptions());
 		$this->assertEquals(200, $request->status_code);