diff --git a/index.js b/index.js
index 3544a92..95bc8c3 100644
--- a/index.js
+++ b/index.js
@@ -485,8 +485,8 @@ function flushSync (stream) {
       break
     }
 
-    if (++spins === 10) {
-      throw new Error('_flushSync took too long (10s)')
+    if (++spins === 20) {
+      throw new Error('_flushSync took too long (20s)')
     }
   }
   // process._rawDebug('flushSync finished')