diff --git a/src/compiler/tsc.ts b/src/compiler/tsc.ts
index 245d5c2219cf3..3a340f049f862 100644
--- a/src/compiler/tsc.ts
+++ b/src/compiler/tsc.ts
@@ -399,4 +399,8 @@ if (ts.Debug.isDebugging) {
 if (ts.sys.tryEnableSourceMapsForHost && /^development$/i.test(ts.sys.getEnvironmentVariable("NODE_ENV"))) {
     ts.sys.tryEnableSourceMapsForHost();
 }
+declare var process: any;
+if (process && process.stdout && process.stdout._handle && process.stdout._handle.setBlocking) {
+    process.stdout._handle.setBlocking(true);
+}
 ts.executeCommandLine(ts.sys.args);
diff --git a/src/server/server.ts b/src/server/server.ts
index f70280c34a3de..2529008c1656b 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -991,6 +991,7 @@ namespace ts.server {
         ioSession.logError(err, "unknown");
     });
     // See https://github.com/Microsoft/TypeScript/issues/11348
+    // tslint:disable-next-line no-unnecessary-type-assertion-2
     (process as any).noAsar = true;
     // Start listening
     ioSession.listen();