diff --git a/lib/ice-coder.js b/lib/ice-coder.js
index 4b6947e..2274013 100644
--- a/lib/ice-coder.js
+++ b/lib/ice-coder.js
@@ -1829,17 +1829,17 @@ var ICEcoder = {
 
 	// Set the tabs width
 	setTabWidths: function() {
-		var availWidth, avgWidth, lastLeft, lastWidth, thisWidth, tabWidth;
+		var availWidth, avgWidth, lastLeft, lastWidth, tabWidth;
 
 		availWidth = parseInt(top.ICEcoder.content.style.width,10)-41-24-10; // - left margin - new tab - right margin
 		avgWidth = (availWidth/top.ICEcoder.openFiles.length)-18;
+		tabWidth = -18; // Incl 18px offset
 		lastLeft = 41;
 		lastWidth = 0;
 		top.ICEcoder.tabLeftPos = [];
 
 		for (var i=0;i<top.ICEcoder.openFiles.length;i++) {
-			thisWidth = parseInt(avgWidth*i,10) - parseInt(avgWidth*(i-1),10);
-			tabWidth = top.ICEcoder.openFiles.length*(150+18) > availWidth ? thisWidth : 150;
+			tabWidth = top.ICEcoder.openFiles.length*(150+18) > availWidth ? parseInt(avgWidth*i,10) - parseInt(avgWidth*(i-1),10) : 150;
 			lastLeft = i==0 ? 41 : parseInt(top.document.getElementById('tab'+(i)).style.left,10);
 			lastWidth = i==0 ? 0 : parseInt(top.document.getElementById('tab'+(i)).style.width,10)+18;
 			top.document.getElementById('tab'+(i+1)).style.left = (lastLeft+lastWidth) + "px";