diff --git a/X121SMCEA/Experts/x-121.smc.expert.class.mq5 b/X121SMCEA/Experts/x-121.smc.expert.class.mq5
index 28c3299a..78b1769e 100644
--- a/X121SMCEA/Experts/x-121.smc.expert.class.mq5
+++ b/X121SMCEA/Experts/x-121.smc.expert.class.mq5
@@ -1963,7 +1963,7 @@ class XC121SMCExpert : public XCBaseExpert
     {
         //
         int count = ArraySize(guards);
-        if (!IsValidSize(guards))
+        if (!HasChild(guards))
         {
             return;
         }