diff --git a/src/tsconfig.strictNullChecks.json b/src/tsconfig.strictNullChecks.json
index e7aa07eeff1..088051ffd9a 100644
--- a/src/tsconfig.strictNullChecks.json
+++ b/src/tsconfig.strictNullChecks.json
@@ -6,7 +6,8 @@
 	},
 	"include": [
 		"./typings",
-		"./vs/base/common/**/*.ts"
+		"./vs/base/common/**/*.ts",
+		"./vs/base/node/**/*.ts"
 	],
 	"files": [
 		"./vs/base/browser/browser.ts",
@@ -61,29 +62,6 @@
 		"./vs/base/browser/ui/tree/objectTreeModel.ts",
 		"./vs/base/browser/ui/tree/tree.ts",
 		"./vs/base/browser/ui/widget.ts",
-		"./vs/base/common/json.ts",
-		"./vs/base/common/jsonEdit.ts",
-		"./vs/base/common/jsonFormatter.ts",
-		"./vs/base/common/paths.ts",
-		"./vs/base/common/uriIpc.ts",
-		"./vs/base/node/config.ts",
-		"./vs/base/node/console.ts",
-		"./vs/base/node/crypto.ts",
-		"./vs/base/node/decoder.ts",
-		"./vs/base/node/encoding.ts",
-		"./vs/base/node/extfs.ts",
-		"./vs/base/node/flow.ts",
-		"./vs/base/node/id.ts",
-		"./vs/base/node/paths.ts",
-		"./vs/base/node/pfs.ts",
-		"./vs/base/node/ports.ts",
-		"./vs/base/node/processes.ts",
-		"./vs/base/node/proxy.ts",
-		"./vs/base/node/ps.ts",
-		"./vs/base/node/request.ts",
-		"./vs/base/node/stats.ts",
-		"./vs/base/node/storage.ts",
-		"./vs/base/node/stream.ts",
 		"./vs/base/parts/contextmenu/common/contextmenu.ts",
 		"./vs/base/parts/contextmenu/electron-browser/contextmenu.ts",
 		"./vs/base/parts/contextmenu/electron-main/contextmenu.ts",