diff --git a/src/ajax.js b/src/ajax.js
index 304a41d48..f3887ff44 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -861,7 +861,7 @@ function ajaxConvert( s, response ) {
 				if ( conv !== true ) {
 
 					// Unless errors are allowed to bubble, catch and return them
-					if ( conv && s.throws ) {
+					if ( conv && s["throws"] ) {
 						response = conv( response );
 					} else {
 						try {
diff --git a/src/manipulation.js b/src/manipulation.js
index d1dcb3768..3cfc97c3b 100644
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -362,7 +362,7 @@ jQuery.fn.extend({
 								dataType: "script",
 								async: false,
 								global: false,
-								throws: true
+								"throws": true
 							});
 						} else {
 							jQuery.error("no ajax");