diff --git a/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts b/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
index 0907f06bf01bd1f2c7a31a531cc3332c814223bd..53ad8b6586f93e522e4fa7bb4a5053fa950a2c36 100644
--- a/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
+++ b/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
@@ -93,7 +93,7 @@ export function renderExpressionValue(expressionOrValue: debug.IExpression | str
 export function renderVariable(tree: ITree, variable: Variable, data: IVariableTemplateData, showChanged: boolean): void {
 	if (variable.available) {
 		data.name.textContent = replaceWhitespace(variable.name);
-		data.name.title = variable.type ? variable.type : '';
+		data.name.title = variable.type ? variable.type : variable.name;
 	}
 
 	if (variable.value) {