diff --git a/less/00-config.less b/less/00-config.less
index b57e297..a0a0f77 100644
--- a/less/00-config.less
+++ b/less/00-config.less
@@ -2,13 +2,13 @@
 
 
 // booleans
-@ie678 				: true; // "true" to activate IE6/IE7/IE8 support
-@styling			: true; // "true" to design basic elements like code, mark, blockquotes, etc.
-@gmaps				: true; // if google maps is used
-@skip-links			: true; // "true" to design skip links for accessibility concerns
-@hyphens			: true; // activate automatic hyphens on small screens
-@helpers-width		: true; // decide whether or not you need width helpers
-@helpers-spacing	: true; // decide whether or not you need spacing helpers
+@enable-ie678 				: true; // "true" to activate IE6/IE7/IE8 support
+@enable-styling			: true; // "true" to design basic elements like code, mark, blockquotes, etc.
+@enable-gmaps				: true; // if google maps is used
+@enable-skip-links			: true; // "true" to design skip links for accessibility concerns
+@enable-hyphens			: true; // activate automatic hyphens on small screens
+@enable-helpers-width		: true; // decide whether or not you need width helpers
+@enable-helpers-spacing	: true; // decide whether or not you need spacing helpers
 
 // font sizes
 @basefont		: 14px; // if "14px" then 1em = 14px
diff --git a/less/01-base.less b/less/01-base.less
index 115c754..2839ce6 100644
--- a/less/01-base.less
+++ b/less/01-base.less
@@ -286,7 +286,7 @@ img.start, img.end {
 
 
 // width helpers boolean
-& when (@helpers-width = true) {
+& when (@enable-helpers-width = true) {
 	/* blocks widths (percentage and pixels) */
 	.w10    { width: 10%; }
 	.w20    { width: 20%; }
@@ -322,7 +322,7 @@ img.start, img.end {
 
 
 // spacing helpers boolean
-& when (@helpers-spacing = true) {
+& when (@enable-helpers-spacing = true) {
 	/* spacing helpers
 	p,m = padding,margin
 	a,t,r,b,l = all,top,right,bottom,left
diff --git a/less/09-booleans.less b/less/09-booleans.less
index dd3ee56..3c0955f 100644
--- a/less/09-booleans.less
+++ b/less/09-booleans.less
@@ -3,7 +3,7 @@
 /* ==booleans                    */
 /* ----------------------------- */
 // skip-links boolean
-& when (@skip-links = true) {
+& when (@enable-skip-links = true) {
 	/* styling skip links */
 	.skip-links {
 		position: absolute;
@@ -24,7 +24,7 @@
 }
 
 // hyphens boolean
-& when (@hyphens = true) {
+& when (@enable-hyphens = true) {
 	@media (max-width: @small-screen) {
 		/* you shall not pass */
 		div, textarea, table, td, th, code, pre, samp {
diff --git a/less/10-gmaps.less b/less/10-gmaps.less
index 555f8a7..28c18a8 100644
--- a/less/10-gmaps.less
+++ b/less/10-gmaps.less
@@ -3,7 +3,7 @@
 /* ==gmaps support               */
 /* ----------------------------- */
 // google maps boolean
-& when (@gmaps = true) {
+& when (@enable-gmaps = true) {
 	/* Google Gmap3 bug fix on images */
 	.gm-style img {
 		height: 100%;
diff --git a/less/11-ie.less b/less/11-ie.less
index d2d915b..deca6ac 100644
--- a/less/11-ie.less
+++ b/less/11-ie.less
@@ -3,7 +3,7 @@
 /* ==IE6, IE7, IE8 support       */
 /* ----------------------------- */
 // IE6, 7, 8 support boolean
-& when (@ie678 = true) {
+& when (@enable-ie678 = true) {
 	/* IE678 support */
 	.ie678 h1, .ie678 .h1-like {
 		@em: @h1-size * 10 / @basefont;
diff --git a/less/12-styling.less b/less/12-styling.less
index 1ccbc84..f93d30e 100644
--- a/less/12-styling.less
+++ b/less/12-styling.less
@@ -4,7 +4,7 @@
 /* ----------------------------- */
 
 // Styling boolean
-& when (@styling = true) {
+& when (@enable-styling = true) {
 	/* styling elements */
 	code, kbd, mark {
 		border-radius: 2px;
diff --git a/less/knackLESS.zip b/less/knackLESS.zip
index 5baaa79..49a21cf 100644
Binary files a/less/knackLESS.zip and b/less/knackLESS.zip differ