diff --git a/packages/ckeditor5-editor-balloon/src/ballooneditorui.ts b/packages/ckeditor5-editor-balloon/src/ballooneditorui.ts
index 07d1c9887df..b83609aa51a 100644
--- a/packages/ckeditor5-editor-balloon/src/ballooneditorui.ts
+++ b/packages/ckeditor5-editor-balloon/src/ballooneditorui.ts
@@ -103,7 +103,7 @@ export default class BalloonEditorUI extends EditorUI {
 	}
 
 	/**
-	 * Enable the placeholder text on the editing root, if any was configured.
+	 * Enable the placeholder text on the editing root.
 	 */
 	private _initPlaceholder(): void {
 		const editor = this.editor;
diff --git a/packages/ckeditor5-editor-classic/src/classiceditorui.ts b/packages/ckeditor5-editor-classic/src/classiceditorui.ts
index b5655b5adef..a7066a6bd2b 100644
--- a/packages/ckeditor5-editor-classic/src/classiceditorui.ts
+++ b/packages/ckeditor5-editor-classic/src/classiceditorui.ts
@@ -142,7 +142,7 @@ export default class ClassicEditorUI extends EditorUI {
 	}
 
 	/**
-	 * Enable the placeholder text on the editing root, if any was configured.
+	 * Enable the placeholder text on the editing root.
 	 */
 	private _initPlaceholder(): void {
 		const editor = this.editor;
diff --git a/packages/ckeditor5-editor-decoupled/src/decouplededitorui.ts b/packages/ckeditor5-editor-decoupled/src/decouplededitorui.ts
index f2ce48219c1..20fe5ae520c 100644
--- a/packages/ckeditor5-editor-decoupled/src/decouplededitorui.ts
+++ b/packages/ckeditor5-editor-decoupled/src/decouplededitorui.ts
@@ -111,22 +111,20 @@ export default class DecoupledEditorUI extends EditorUI {
 	}
 
 	/**
-	 * Enable the placeholder text on the editing root, if any was configured.
+	 * Enable the placeholder text on the editing root.
 	 */
 	private _initPlaceholder(): void {
 		const editor = this.editor;
 		const editingView = editor.editing.view;
 		const editingRoot = editingView.document.getRoot()!;
-
 		const placeholder = editor.config.get( 'placeholder' );
-		let placeholderText;
 
 		if ( placeholder ) {
-			placeholderText = typeof placeholder === 'string' ? placeholder : placeholder[ editingRoot.rootName ];
-		}
+			const placeholderText = typeof placeholder === 'string' ? placeholder : placeholder[ editingRoot.rootName ];
 
-		if ( placeholderText ) {
-			editingRoot.placeholder = placeholderText;
+			if ( placeholderText ) {
+				editingRoot.placeholder = placeholderText;
+			}
 		}
 
 		enablePlaceholder( {