diff --git a/nars_core/nars/main/Shell.java b/nars_core/nars/main/Shell.java
index 9ea4c11d1258b73257c69068fff21e889988a84f..f524c0f6bed8f1bd98c6b01d19254fde4818d6a7 100644
--- a/nars_core/nars/main/Shell.java
+++ b/nars_core/nars/main/Shell.java
@@ -53,6 +53,7 @@ public class Shell {
     public static void main(String args[]) {
                 
         Shell nars = new Shell(new NAR());
+        nars.nar.addInput("*volume=0");
         nars.run(args);
         
         // TODO only if single finish ( no reset in between )