diff --git a/ui/jquery.effects.core.js b/ui/jquery.effects.core.js
index a47880e7ff8..233b4f96d3b 100644
--- a/ui/jquery.effects.core.js
+++ b/ui/jquery.effects.core.js
@@ -425,7 +425,7 @@ $.extend( $.effects, {
 			$( active ).focus();
 		}
 
-		wrapper = element.parent(); //Hotfix for jQuery 1.4 since some change in wrap() seems to actually loose the reference to the wrapped element
+		wrapper = element.parent(); //Hotfix for jQuery 1.4 since some change in wrap() seems to actually lose the reference to the wrapped element
 
 		// transfer positioning properties to the wrapper
 		if ( element.css( "position" ) === "static" ) {