diff --git a/lib/SAML2/Binding.php b/lib/SAML2/Binding.php
index 50fd2ccde91d6769e8fb508acd1f964d4ee959f1..b2336ced39507e27fe05ae67e55a98a669b00b74 100644
--- a/lib/SAML2/Binding.php
+++ b/lib/SAML2/Binding.php
@@ -63,7 +63,7 @@ abstract class SAML2_Binding {
 		case 'POST':
 			if (array_key_exists('SAMLRequest', $_REQUEST) || array_key_exists('SAMLResponse', $_REQUEST)) {
 				return new SAML2_HTTPPost();
-			} elseif (array_key_exits('CONTENT_TYPE', $_SERVER) && $_SERVER['CONTENT_TYPE'] === 'text/xml'){
+			} elseif (array_key_exists('CONTENT_TYPE', $_SERVER) && $_SERVER['CONTENT_TYPE'] === 'text/xml'){
 				return new SAML2_SOAP();
 			}
 			break;