# Node ID 8623109df37d8d69fe46c573439fcc7cad862bf8
# Parent  0e73ec98b6bc0758e43d0bc2cb46228acfa47313
diff --git a/src/mem/comm_monitor.cc b/src/mem/comm_monitor.cc
--- a/src/mem/comm_monitor.cc
+++ b/src/mem/comm_monitor.cc
@@ -248,8 +248,8 @@
     // or even deleted when sendTiming() is called.
     const ProbePoints::PacketInfo pkt_info(pkt);
 
-    const bool is_read = pkt->isRead();
-    const bool is_write = pkt->isWrite();
+    const bool is_read M5_VAR_USED = pkt->isRead();
+    const bool is_write M5_VAR_USED = pkt->isWrite();
     const bool expects_response(pkt->needsResponse() &&
                                 !pkt->cacheResponding());
 
@@ -291,8 +291,8 @@
     // or even deleted when sendTiming() is called.
     const ProbePoints::PacketInfo pkt_info(pkt);
 
-    bool is_read = pkt->isRead();
-    bool is_write = pkt->isWrite();
+    bool is_read M5_VAR_USED = pkt->isRead();
+    bool is_write M5_VAR_USED = pkt->isWrite();
     Tick latency = 0;
     CommMonitorSenderState* received_state =
         dynamic_cast<CommMonitorSenderState*>(pkt->senderState);