diff --git a/core/src/processing/core/PSurfaceNone.java b/core/src/processing/core/PSurfaceNone.java
index 7b5a17f57..cb9038459 100644
--- a/core/src/processing/core/PSurfaceNone.java
+++ b/core/src/processing/core/PSurfaceNone.java
@@ -207,7 +207,7 @@ public class PSurfaceNone implements PSurface {
 
 
   public boolean isStopped() {
-    return thread == null;
+    return thread == null || !thread.isAlive();
   }