diff --git a/NQ/net_dgrm.c b/NQ/net_dgrm.c
index d4c4f50..4f9d790 100644
--- a/NQ/net_dgrm.c
+++ b/NQ/net_dgrm.c
@@ -368,7 +368,7 @@ Datagram_GetMessage(qsocket_t *sock)
 	    }
 	    sock->sendMessageLength -= MAX_DATAGRAM;
 	    if (sock->sendMessageLength > 0) {
-		memcpy(sock->sendMessage, sock->sendMessage + MAX_DATAGRAM,
+		memmove(sock->sendMessage, sock->sendMessage + MAX_DATAGRAM,
 		       sock->sendMessageLength);
 		sock->sendNext = true;
 	    } else {
diff --git a/NQ/net_loop.c b/NQ/net_loop.c
index a2e3313..82acf85 100644
--- a/NQ/net_loop.c
+++ b/NQ/net_loop.c
@@ -150,7 +150,7 @@ Loop_GetMessage(qsocket_t *sock)
     sock->receiveMessageLength -= length;
 
     if (sock->receiveMessageLength)
-	memcpy(sock->receiveMessage, &sock->receiveMessage[length],
+	memmove(sock->receiveMessage, &sock->receiveMessage[length],
 	       sock->receiveMessageLength);
 
     if (sock->driverdata && ret == 1)
diff --git a/common/cmd.c b/common/cmd.c
index fda3b08..7cd3d3e 100644
--- a/common/cmd.c
+++ b/common/cmd.c
@@ -196,7 +196,7 @@ Cbuf_Execute(void)
 	else {
 	    i++;
 	    cmd_text.cursize -= i;
-	    memcpy(text, text + i, cmd_text.cursize);
+	    memmove(text, text + i, cmd_text.cursize);
 	}
 
 	/* execute the command line */