diff --git a/src/vs/workbench/parts/debug/electron-browser/debugHover.ts b/src/vs/workbench/parts/debug/electron-browser/debugHover.ts
index 0777fb627fa..384c28292e8 100644
--- a/src/vs/workbench/parts/debug/electron-browser/debugHover.ts
+++ b/src/vs/workbench/parts/debug/electron-browser/debugHover.ts
@@ -77,6 +77,7 @@ export class DebugHoverWidget implements IContentWidget {
 			controller: this.instantiationService.createInstance(DebugHoverController, this.editor)
 		}, {
 				indentPixels: 6,
+				horizontalScrollMode: ScrollbarVisibility.Auto,
 				twistiePixels: 15,
 				ariaLabel: nls.localize('treeAriaLabel', "Debug Hover")
 			});