diff --git a/SQCSim-common/netprotocol.cpp b/SQCSim-common/netprotocol.cpp
index fbc5fb5..c6c25dd 100644
--- a/SQCSim-common/netprotocol.cpp
+++ b/SQCSim-common/netprotocol.cpp
@@ -1014,7 +1014,8 @@ std::vector<char*> netprot::recvPacks(SOCKET sock, Buffer* buf, Buffer* outbuf)
 				}
 			}
 			else {
-				buf->tmp = last;
+				if (!outbuf)
+					buf->tmp = last;
 				cursor = &buf->ptr[len];
 				next = cursor + 1;
 				break;