diff --git a/wp-includes/js/tinymce/themes/advanced/img/allicons.png b/wp-includes/js/tinymce/themes/advanced/img/allicons.png
deleted file mode 100644
index ccea3ecd84..0000000000
Binary files a/wp-includes/js/tinymce/themes/advanced/img/allicons.png and /dev/null differ
diff --git a/wp-includes/js/tinymce/themes/advanced/img/wpicons.png b/wp-includes/js/tinymce/themes/advanced/img/wpicons.png
index 4fdcf0388f..17c2eee316 100644
Binary files a/wp-includes/js/tinymce/themes/advanced/img/wpicons.png and b/wp-includes/js/tinymce/themes/advanced/img/wpicons.png differ
diff --git a/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css b/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css
index a9b55541bc..d00470ed3a 100644
--- a/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css
+++ b/wp-includes/js/tinymce/themes/advanced/skins/wp_theme/ui.css
@@ -75,16 +75,11 @@ border:0; margin:0; padding:0; white-space:nowrap; text-decoration:none; font-we
 .wp_themeSkin span.mce_wp_help,
 .wp_themeSkin span.mce_wp_adv,
 .wp_themeSkin span.mce_wp_more,
+.wp_themeSkin span.mce_strikethrough,
 .wp_themeSkin .mceSplitButton .mce_forecolor span.mce_forecolor {
 	background: url(../../img/wpicons.png) no-repeat 20px 20px;
 }
 
-/* missing */
-.wp_themeSkin span.mce_strikethrough {
-	background: url(../../img/allicons.png) no-repeat 20px 20px;
-	background-position:-120px 0;
-}
-
 /* Button */
 .wp_themeSkin .mceButton {
 	display:block;
@@ -417,6 +412,10 @@ border:0; margin:0; padding:0; white-space:nowrap; text-decoration:none; font-we
 .wp_themeSkin .mceButtonEnabled:hover span.mce_removeformat,
 .wp_themeSkin .mceButtonActive span.mce_removeformat {background-position:-381px 0}
 
+.wp_themeSkin span.mce_strikethrough {background-position:-540px -18px;}
+.wp_themeSkin .mceButtonEnabled:hover span.mce_strikethrough,
+.wp_themeSkin .mceButtonActive span.mce_strikethrough {background-position:-540px 0}
+
 .wp_themeSkin .mceSplitButton .mce_forecolor span.mce_forecolor {background-position:-321px -22px}
 .wp_themeSkin .mceSplitButtonEnabled:hover span.mce_forecolor,
 .wp_themeSkin .mceSplitButtonActive span.mce_forecolor {background-position:-321px -2px}