diff --git a/src/core.js b/src/core.js
index fdf5072e..d46f89d1 100644
--- a/src/core.js
+++ b/src/core.js
@@ -401,6 +401,9 @@ jQuery.fn = jQuery.prototype = {
 			return undefined;
 		}
 
+		if( value.constructor == Number )
+			value += '';
+
 		return this.each(function(){
 			if ( this.nodeType != 1 )
 				return;