diff --git a/mg/mg4300.h b/mg/mg4300.h
index eb1dd8a9d..081022adb 100755
--- a/mg/mg4300.h
+++ b/mg/mg4300.h
@@ -23,7 +23,8 @@
 #define G_PARAMVALORI 4
 
 #define ALIAS_CAUSALI 500
-#define ALIAS_UMRMOV 501
+#define ALIAS_CAUSALIR 501
+#define ALIAS_UMRMOV 502
 
 #define FF_CODTOT 601
 #define FF_UMTOT 602