diff --git a/CHANGES.md b/CHANGES.md
index 79066354545..81062ab4d7e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,7 @@ New Features:
 
 Fixed Issues:
 
+* [#579](https://github.com/ckeditor/ckeditor-dev/issues/579): Fixed: Internal `cke_table-faked-selection-table` class visible in Stylesheet Classes field in [Table Properties](http://ckeditor.com/addon/table) dialog.
 * [#545](https://github.com/ckeditor/ckeditor-dev/issues/545): [Edge] Fixed: Error thrown when pressing the Select All button in a [Source Mode](http://ckeditor.com/addon/sourcearea).
 * [#582](https://github.com/ckeditor/ckeditor-dev/issues/582): Fixed: Double slash in path to stylesheet needed by [Table Selection](http://ckeditor.com/addon/tableselection) plugin. Thanks to [Marius Dumitru Florea](https://github.com/mflorea)!
 * [#491](https://github.com/ckeditor/ckeditor-dev/issues/491): Fixed: Unnecessary dependency on [Editor Toolbar](http://ckeditor.com/addon/toolbar) plugin inside [Notification](http://ckeditor.com/addon/notification) plugin.
diff --git a/plugins/tableselection/plugin.js b/plugins/tableselection/plugin.js
index b55ef30c617..20738fc3876 100644
--- a/plugins/tableselection/plugin.js
+++ b/plugins/tableselection/plugin.js
@@ -7,8 +7,8 @@
 	'use strict';
 
 	var fakeSelectedClass = 'cke_table-faked-selection',
-		fakeSelectedTableClass = fakeSelectedClass + '-table',
 		fakeSelectedEditorClass = fakeSelectedClass + '-editor',
+		fakeSelectedTableDataAttribute = 'cke-table-faked-selection-table',
 		fakeSelection = { active: false },
 		tabletools,
 		getSelectedCells,
@@ -122,7 +122,7 @@
 		}
 
 		if ( selectedCells.count() > 0 ) {
-			selectedCells.getItem( 0 ).getAscendant( 'table' ).removeClass( fakeSelectedTableClass );
+			selectedCells.getItem( 0 ).getAscendant( 'table' ).data( fakeSelectedTableDataAttribute, false );
 		}
 
 		editor.fire( 'unlockSnapshot' );
@@ -251,7 +251,7 @@
 
 		if ( cells.length > 0 ) {
 			editor.editable().addClass( fakeSelectedEditorClass );
-			cells[ 0 ].getAscendant( 'table' ).addClass( fakeSelectedTableClass );
+			cells[ 0 ].getAscendant( 'table' ).data( fakeSelectedTableDataAttribute, '' );
 		}
 
 		editor.fire( 'unlockSnapshot' );
diff --git a/plugins/tableselection/styles/tableselection.css b/plugins/tableselection/styles/tableselection.css
index 155bfc20cec..3ad2ab1a879 100644
--- a/plugins/tableselection/styles/tableselection.css
+++ b/plugins/tableselection/styles/tableselection.css
@@ -1,4 +1,4 @@
-.cke_table-faked-selection-editor *::selection, table.cke_table-faked-selection-table *::selection {
+.cke_table-faked-selection-editor *::selection, table[data-cke-table-faked-selection-table] *::selection {
 	background: transparent;
 }
 
diff --git a/tests/plugins/table/fakeselectionadvancetab.js b/tests/plugins/table/fakeselectionadvancetab.js
new file mode 100644
index 00000000000..67be0f53bca
--- /dev/null
+++ b/tests/plugins/table/fakeselectionadvancetab.js
@@ -0,0 +1,27 @@
+/* bender-tags: editor,unit */
+/* bender-ckeditor-plugins: dialogadvtab,table,tableselection */
+
+( function() {
+	'use strict';
+
+	bender.editor = true;
+
+	bender.test( {
+
+		// #579
+		'test advance table dialog for ignorig selection class': function() {
+			if ( !CKEDITOR.plugins.tableselection.isSupportedEnvironment ) {
+				assert.ignore();
+			}
+
+			var bot = this.editorBot;
+
+			// Add table with fake selection.
+			bot.setHtmlWithSelection( '<table border="1">[<tr><td>Cell1</td><td>Cell2</td></tr>]</table>' );
+
+			bot.dialog( 'tableProperties', function( dialog ) {
+				assert.areSame( '', dialog.getValueOf( 'advanced', 'advCSSClasses' ) );
+			} );
+		}
+	} );
+} )();
diff --git a/tests/plugins/table/manual/fakeselectionadvancetab.html b/tests/plugins/table/manual/fakeselectionadvancetab.html
new file mode 100644
index 00000000000..99f166f9d8f
--- /dev/null
+++ b/tests/plugins/table/manual/fakeselectionadvancetab.html
@@ -0,0 +1,34 @@
+<textarea id="editor1">
+	&lt;table border="1" bordercolor="#ccc" cellpadding="5" cellspacing="0" style="border-collapse:collapse"&gt;
+		&lt;caption&gt;&lt;strong&gt;Mission crew&lt;/strong&gt;&lt;/caption&gt;
+		&lt;thead&gt;
+			&lt;tr&gt;
+				&lt;th scope="col" style="background-color: rgb(221, 221, 221);"&gt;Position&lt;/th&gt;
+				&lt;th scope="col" style="background-color: rgb(221, 221, 221);"&gt;Astronaut&lt;/th&gt;
+			&lt;/tr&gt;
+		&lt;/thead&gt;
+		&lt;tbody&gt;
+			&lt;tr&gt;
+				&lt;td&gt;Commander&lt;/td&gt;
+				&lt;td style="text-align:center"&gt;Neil A. Armstrong&lt;/td&gt;
+			&lt;/tr&gt;
+			&lt;tr&gt;
+				&lt;td&gt;Command Module Pilot&lt;/td&gt;
+				&lt;td style="text-align:center"&gt;Michael Collins&lt;/td&gt;
+			&lt;/tr&gt;
+			&lt;tr&gt;
+				&lt;td&gt;Lunar Module Pilot&lt;/td&gt;
+				&lt;td style="text-align:center"&gt;Edwin &amp;quot;Buzz&amp;quot; E. Aldrin, Jr.&lt;/td&gt;
+			&lt;/tr&gt;
+		&lt;/tbody&gt;
+	&lt;/table&gt;
+</textarea>
+
+<script>
+	CKEDITOR.replace( 'editor1' );
+	CKEDITOR.on( 'instanceLoaded', function() {
+		if ( !CKEDITOR.plugins.tableselection.isSupportedEnvironment ) {
+			bender.ignore();
+		}
+	});
+</script>
diff --git a/tests/plugins/table/manual/fakeselectionadvancetab.md b/tests/plugins/table/manual/fakeselectionadvancetab.md
new file mode 100644
index 00000000000..9b264ecff3a
--- /dev/null
+++ b/tests/plugins/table/manual/fakeselectionadvancetab.md
@@ -0,0 +1,13 @@
+@bender-tags: 4.7.2, bug, 579
+@bender-ui: collapsed
+@bender-ckeditor-plugins: dialogadvtab,table,tableselection,wysiwygarea
+
+1. Select at least 2 cells in table.
+1. Right click and select `Table Properties`.
+1. Make sure that selection is now fake (selection colour changed to grey).
+1. Go to `Avanced` tab.
+1. Check `Stylesheet Classes`.
+
+**Expected:** `Stylesheet Classes` field is empty.
+
+**Unexpected:** `Stylesheet Classes` contains internal cke class with fakeselection.
diff --git a/tests/plugins/tableselection/integrations/core/getextractselectedhtml.html b/tests/plugins/tableselection/integrations/core/getextractselectedhtml.html
index 4022a64af6d..6166b35fb5c 100644
--- a/tests/plugins/tableselection/integrations/core/getextractselectedhtml.html
+++ b/tests/plugins/tableselection/integrations/core/getextractselectedhtml.html
@@ -12,7 +12,7 @@
 	</table>
 </p>
 =>
-<table class="cke_table-faked-selection-table">
+<table data-cke-table-faked-selection-table="">
 	<tbody>
 		<tr>
 			<td class="cke_table-faked-selection">11@</td>
@@ -36,7 +36,7 @@
 	</table>
 </p>
 =>
-<table class="cke_table-faked-selection-table">
+<table data-cke-table-faked-selection-table="">
 	<tbody>
 		<tr>
 			<td class="cke_table-faked-selection">11@</td>
@@ -62,7 +62,7 @@
 	</tr>
 </table>
 =>
-<table class="cke_table-faked-selection-table">
+<table data-cke-table-faked-selection-table="">
 	<tbody>
 		<tr>
 			<td class="cke_table-faked-selection" colspan="2">11@</td>
@@ -76,4 +76,4 @@
 		</tr>
 	</tbody>
 </table>
-</textarea>
\ No newline at end of file
+</textarea>