diff --git a/CHANGES.md b/CHANGES.md
index 47a22edc72a..083937b3776 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -16,6 +16,7 @@ Fixed Issues:
 * [#719](https://github.com/ckeditor/ckeditor-dev/issues/719): Fixed: Image inserted using [Enhanced Image](https://ckeditor.com/addon/image2) plugin could be resized when editor is in read-only mode.
 * [#577](https://github.com/ckeditor/ckeditor-dev/issues/577): Fixed: "Delete Columns" command provided by [Table Tools](https://ckeditor.com/addon/tabletools) plugin throws an error while trying to delete columns.
 * [#867](https://github.com/ckeditor/ckeditor-dev/issues/867): Fixed: Typing into selected table throws an error.
+* [#817](https://github.com/ckeditor/ckeditor-dev/issues/817): Fixed: [Save](https://ckeditor.com/addon/save) plugin does not work in [Source Mode](https://ckeditor.com/addon/sourcearea).
 
 Other Changes:
 
diff --git a/plugins/save/plugin.js b/plugins/save/plugin.js
index 7227e2bd389..843c9d716da 100644
--- a/plugins/save/plugin.js
+++ b/plugins/save/plugin.js
@@ -10,6 +10,7 @@
 ( function() {
 	var saveCmd = {
 		readOnly: 1,
+		modes: { wysiwyg: 1,source: 1 },
 
 		exec: function( editor ) {
 			if ( editor.fire( 'save' ) ) {
@@ -45,7 +46,7 @@
 				return;
 
 			var command = editor.addCommand( pluginName, saveCmd );
-			command.modes = { wysiwyg: !!( editor.element.$.form ) };
+			command.startDisabled = !( editor.element.$.form );
 
 			editor.ui.addButton && editor.ui.addButton( 'Save', {
 				label: editor.lang.save.toolbar,
diff --git a/tests/plugins/save/manual/sourcemode.html b/tests/plugins/save/manual/sourcemode.html
new file mode 100644
index 00000000000..bd990488a5e
--- /dev/null
+++ b/tests/plugins/save/manual/sourcemode.html
@@ -0,0 +1,9 @@
+<form>
+	<textarea id="editor1">editor</textarea>
+</form>
+
+<script>
+	CKEDITOR.replace( 'editor1', {
+		startupMode: 'source'
+	} );
+</script>
diff --git a/tests/plugins/save/manual/sourcemode.md b/tests/plugins/save/manual/sourcemode.md
new file mode 100644
index 00000000000..d5b2dc062c1
--- /dev/null
+++ b/tests/plugins/save/manual/sourcemode.md
@@ -0,0 +1,13 @@
+@bender-ui: collapsed
+@bender-tags: 817, 4.7.3, bug
+@bender-ckeditor-plugins: wysiwygarea, save, sourcearea, toolbar
+
+**Procedure:**
+
+1. Check if "Save" button is enabled.
+2. Switch to WYSIWYG mode.
+3. Check if "Save" button is enabled.
+
+**Expected result:**
+
+* "Save" button should be enabled in both modes.
diff --git a/tests/plugins/save/save.html b/tests/plugins/save/save.html
index 4201fd7815c..ca58bf7578c 100644
--- a/tests/plugins/save/save.html
+++ b/tests/plugins/save/save.html
@@ -1,3 +1,7 @@
-<form id="form">
-	<textarea id="editor">editor</textarea>
+<form id="form1">
+	<textarea id="editor1">editor</textarea>
+</form>
+
+<form id="form2">
+	<textarea id="editor2">editor</textarea>
 </form>
\ No newline at end of file
diff --git a/tests/plugins/save/save.js b/tests/plugins/save/save.js
index 168e10c35b5..adc42bedb62 100644
--- a/tests/plugins/save/save.js
+++ b/tests/plugins/save/save.js
@@ -1,26 +1,35 @@
 /* bender-tags: editor */
-/* bender-ckeditor-plugins: toolbar,save,wysiwygarea */
+/* bender-ckeditor-plugins: toolbar,save,wysiwygarea,sourcearea */
 
-bender.test( {
-	'test save event': function() {
-		var editor = CKEDITOR.replace( 'editor' ),
-			count = 0;
+function saveTest( editor ) {
+	var count = 0;
 
-		editor.on( 'instanceReady', function() {
-			editor.execCommand( 'save' );
+	editor.on( 'instanceReady', function() {
+		editor.execCommand( 'save' );
 
-			setTimeout( function() {
-				resume( function() {
-					assert.areSame( 1, count, 'save was fired once' );
-				} );
+		setTimeout( function() {
+			resume( function() {
+				assert.areSame( 1, count, 'save was fired once' );
 			} );
 		} );
+	} );
 
-		editor.on( 'save', function() {
-			count++;
-			return false;
-		} );
+	editor.on( 'save', function() {
+		count++;
+		return false;
+	} );
+
+	wait();
+}
+
+bender.test( {
+	'test save event in WYSIWYG mode': function() {
+		var editor = CKEDITOR.replace( 'editor1' );
+		saveTest( editor );
+	},
 
-		wait();
+	'test save event in source mode': function() {
+		var editor = CKEDITOR.replace( 'editor2' , { startupMode: 'source' } );
+		saveTest( editor );
 	}
 } );