diff --git a/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts b/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
index d82164b1452259e5f742823e5367d9cee88036a1..f6a27539f9b6354fa22da6f1ea2396918d8e2f88 100644
--- a/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
+++ b/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
@@ -172,7 +172,7 @@ function renderRenameBox(debugService: debug.IDebugService, contextViewService:
 }
 
 function getSourceName(source: Source, contextService: IWorkspaceContextService): string {
-	if (source.inMemory) {
+	if (source.name) {
 		return source.name;
 	}