diff --git a/DRAMSys/library/src/controller/cmdmux/CmdMuxStrict.cpp b/DRAMSys/library/src/controller/cmdmux/CmdMuxStrict.cpp
index 12a167be..c2b0f9e0 100644
--- a/DRAMSys/library/src/controller/cmdmux/CmdMuxStrict.cpp
+++ b/DRAMSys/library/src/controller/cmdmux/CmdMuxStrict.cpp
@@ -216,7 +216,11 @@ CommandTuple::Type CmdMuxStrictRasCas::selectCommand(const ReadyCommands &readyC
 
     if (result != readyCommands.cend() &&
             std::get<CommandTuple::Timestamp>(*result) == sc_time_stamp())
-        return *result;
+        { 
+            if (isCasCommand(std::get<CommandTuple::Command>(*result)))
+                nextPayloadID++;
+            return *result;
+        } 
     else
         return CommandTuple::Type(Command::NOP, nullptr, sc_max_time());
 }