diff --git a/src/offset.js b/src/offset.js
index 7343353b5d..8268ce726b 100644
--- a/src/offset.js
+++ b/src/offset.js
@@ -35,13 +35,13 @@ if ( "getBoundingClientRect" in document.documentElement ) {
 		var offsetParent = elem.offsetParent, prevOffsetParent = elem,
 			doc = elem.ownerDocument, computedStyle, docElem = doc.documentElement,
 			body = doc.body, defaultView = doc.defaultView,
-			prevComputedStyle = defaultView.getComputedStyle( elem, null ),
+			prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
 			top = elem.offsetTop, left = elem.offsetLeft;
 
 		while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
 			if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) { break; }
 
-			computedStyle = defaultView.getComputedStyle(elem, null);
+			computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
 			top  -= elem.scrollTop;
 			left -= elem.scrollLeft;