diff --git a/library/Requests.php b/library/Requests.php
index 4c7e93217..4ec11cb7d 100755
--- a/library/Requests.php
+++ b/library/Requests.php
@@ -564,6 +564,9 @@ protected static function set_defaults(&$url, &$headers, &$data, &$type, &$optio
 			$url = $iri->uri;
 		}
 
+		// Massage the type to ensure we support it.
+		$type = strtoupper($type);
+
 		if (!isset($options['data_format'])) {
 			if (in_array($type, array(self::HEAD, self::GET, self::DELETE))) {
 				$options['data_format'] = 'query';