diff --git a/src/vs/workbench/api/node/extHostLanguageFeatures.ts b/src/vs/workbench/api/node/extHostLanguageFeatures.ts
index b5635cf1a7e..51d657c1b07 100644
--- a/src/vs/workbench/api/node/extHostLanguageFeatures.ts
+++ b/src/vs/workbench/api/node/extHostLanguageFeatures.ts
@@ -283,13 +283,13 @@ class QuickFixAdapter {
 	provideCodeActions(resource: URI, range: IRange): TPromise<modes.Command[]> {
 
 		const doc = this._documents.getDocumentData(resource).document;
-		const ran = TypeConverters.toRange(range);
+		const ran = <vscode.Range>TypeConverters.toRange(range);
 		const allDiagnostics: vscode.Diagnostic[] = [];
 
 		this._diagnostics.forEach(collection => {
 			if (collection.has(resource)) {
 				for (let diagnostic of collection.get(resource)) {
-					if (diagnostic.range.intersection(ran)) {
+					if (ran.contains(diagnostic.range)) {
 						allDiagnostics.push(diagnostic);
 					}
 				}