diff --git a/src/vs/base/browser/ui/splitview/paneview.css b/src/vs/base/browser/ui/splitview/paneview.css
index f24f308597ff5..3ffad073be007 100644
--- a/src/vs/base/browser/ui/splitview/paneview.css
+++ b/src/vs/base/browser/ui/splitview/paneview.css
@@ -38,19 +38,12 @@
 	width: 22px;
 }
 
-.monaco-pane-view .pane > .pane-header > .twisties {
-	width: 20px;
-	display: flex;
-	align-items: center;
-	justify-content: center;
-	transform-origin: center;
-	color: inherit;
-	flex-shrink: 0;
+.monaco-pane-view .pane > .pane-header > .codicon:first-of-type {
+	margin: 0 2px;
 }
 
-.monaco-pane-view .pane.horizontal:not(.expanded) > .pane-header > .twisties {
-	margin-top: 2px;
-	margin-bottom: 2px;
+.monaco-pane-view .pane.horizontal:not(.expanded) > .pane-header > .codicon:first-of-type {
+	margin: 2px;
 }
 
 /* TODO: actions should be part of the pane, but they aren't yet */
diff --git a/src/vs/workbench/browser/parts/views/viewPaneContainer.ts b/src/vs/workbench/browser/parts/views/viewPaneContainer.ts
index 0d53a588e3418..410c672449130 100644
--- a/src/vs/workbench/browser/parts/views/viewPaneContainer.ts
+++ b/src/vs/workbench/browser/parts/views/viewPaneContainer.ts
@@ -296,7 +296,7 @@ export abstract class ViewPane extends Pane implements IView {
 	protected renderHeader(container: HTMLElement): void {
 		this.headerContainer = container;
 
-		this.twistiesContainer = append(container, $('.twisties' + ThemeIcon.asCSSSelector(this.getTwistyIcon(this.isExpanded()))));
+		this.twistiesContainer = append(container, $(ThemeIcon.asCSSSelector(this.getTwistyIcon(this.isExpanded()))));
 
 		this.renderHeaderTitle(container, this.title);