diff --git a/src/mem/packet.cc b/src/mem/packet.cc
index 64f4fcd14..4c3a785dc 100644
--- a/src/mem/packet.cc
+++ b/src/mem/packet.cc
@@ -168,6 +168,9 @@ MemCmd::commandInfo[] =
     { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" },
     /* Flush Request */
     { SET3(IsRequest, IsFlush, NeedsExclusive), InvalidCmd, "FlushReq" },
+    /* Invalidation Request */
+    { SET3(NeedsExclusive, IsInvalidate, IsRequest),
+      InvalidCmd, "InvalidationReq" },
 };
 
 bool
diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 6347c21ea..e49ce7577 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -108,6 +108,7 @@ class MemCmd
         // Fake simulator-only commands
         PrintReq,       // Print state matching address
         FlushReq,      //request for a cache flush
+        InvalidationReq,   // request for address to be invalidated from lsq
         NUM_MEM_CMDS
     };