--- a/src/emcy.c	Wed Sep 16 15:13:51 2009 +0200
+++ b/src/emcy.c	Wed Sep 16 15:15:28 2009 +0200
@@ -101,7 +101,7 @@
   
 	MSG_WAR(0x3051, "sendEMCY", 0);
   
-	m.cob_id = UNS16_LE(*(UNS32*)d->error_cobid);
+	m.cob_id = (UNS16)UNS16_LE(*(UNS32*)d->error_cobid);
 	m.rtr = NOT_A_REQUEST;
 	m.len = 8;
 	m.data[0] = errCode & 0xFF;        /* LSB */