diff --git a/src/vs/workbench/parts/debug/common/debugSource.ts b/src/vs/workbench/parts/debug/common/debugSource.ts
index c478cf76b2a2f53230eea8d8d52dd081216596e4..1703c40f8f90f3f254802c9e58a38b23762dcaa8 100644
--- a/src/vs/workbench/parts/debug/common/debugSource.ts
+++ b/src/vs/workbench/parts/debug/common/debugSource.ts
@@ -15,7 +15,7 @@ export class Source {
 	private static INTERNAL_URI_PREFIX = 'debug://internal/';
 
 	constructor(public raw: DebugProtocol.Source, available = true) {
-		this.uri = raw.path ? uri.file(raw.path) : uri.parse(Source.INTERNAL_URI_PREFIX + raw.name);
+		this.uri = raw.path ? uri.file(paths.normalize(raw.path)) : uri.parse(Source.INTERNAL_URI_PREFIX + raw.name);
 		this.available = available;
 	}