diff --git a/CHANGES.md b/CHANGES.md
index 8a8b47c3b13..2dbf03100a8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -18,6 +18,7 @@ Fixed Issues:
 * [#11400](http://dev.ckeditor.com/ticket/11400): Fixed [`domObject.removeAllListeners`](http://docs.ckeditor.com/#!/api/CKEDITOR.dom.domObject-method-removeAllListeners) does not remove custom listeners completely.
 * [#11493](http://dev.ckeditor.com/ticket/11493): Fixed [`selection.getRanges`](http://docs.ckeditor.com/#!/api/CKEDITOR.dom.selection-method-getRanges) does not override cached ranges when used with `onlyEditables` argument.
 * [#11390](http://dev.ckeditor.com/ticket/11390): All [XML](http://docs.ckeditor.com/#!/api/CKEDITOR.xml) plugin's methods work now on IE10+.
+* [#11542](http://dev.ckeditor.com/ticket/11542): [IE11] Fixed: Blurry toolbar icons when right-to-left UI language is set.
 
 ## CKEditor 4.3.2
 
diff --git a/skins/moono/toolbar.css b/skins/moono/toolbar.css
index 3b6c5474679..587006aa0e5 100644
--- a/skins/moono/toolbar.css
+++ b/skins/moono/toolbar.css
@@ -93,20 +93,6 @@ Special outer level classes used in this file:
 	margin-bottom: 10px;
 }
 
-.cke_rtl .cke_toolgroup *:first-child
-{
-	-moz-border-radius: 0 2px 2px 0;
-	-webkit-border-radius: 0 2px 2px 0;
-	border-radius: 0 2px 2px 0;
-}
-
-.cke_rtl .cke_toolgroup *:last-child
-{
-	-moz-border-radius: 2px 0 0 2px;
-	-webkit-border-radius: 2px 0 0 2px;
-	border-radius: 2px 0 0 2px;
-}
-
 .cke_rtl .cke_toolgroup
 {
 	float: right;
@@ -126,6 +112,24 @@ a.cke_button
 	border: 0;
 }
 
+.cke_ltr .cke_button:last-child,
+.cke_rtl .cke_button:first-child
+{
+	/* Don't distort parent's rounded border. */
+	-moz-border-radius: 0 2px 2px 0;
+	-webkit-border-radius: 0 2px 2px 0;
+	border-radius: 0 2px 2px 0;
+}
+
+.cke_ltr .cke_button:first-child,
+.cke_rtl .cke_button:last-child
+{
+	/* Don't distort parent's rounded border. */
+	-moz-border-radius: 2px 0 0 2px;
+	-webkit-border-radius: 2px 0 0 2px;
+	border-radius: 2px 0 0 2px;
+}
+
 .cke_rtl .cke_button
 {
 	float: right;