diff --git a/examples/random/last digit demo.xml b/examples/random/last digit demo.xml
index 419568bf9a..503286ba77 100644
--- a/examples/random/last digit demo.xml	
+++ b/examples/random/last digit demo.xml	
@@ -23,6 +23,11 @@
             <field name="NUM">1</field>
           </block>
         </value>
+        <value name="martingale">
+          <block type="math_number" id="ergr9r10fQR4T55K">
+            <field nam="NUM">1.2</field>
+          </block>
+        </value>
         <value name="PREDICTION">
           <block type="math_number" id="Bm/_14k}%TixIz)8q`}M">
             <field name="NUM">1</field>
@@ -66,4 +71,4 @@
       <block type="trade_again" id="dC!*k5JT%u:pq=NsZTX~"></block>
     </statement>
   </block>
-</xml>
\ No newline at end of file
+</xml>