diff --git a/mediachanger/castorrmc/common/serror.c b/mediachanger/castorrmc/common/serror.c
index e943863b05a2df9ee97947317769e50157206d2b..0ae29e529907f805eec18ab0f7a25bff45a93a81 100644
--- a/mediachanger/castorrmc/common/serror.c
+++ b/mediachanger/castorrmc/common/serror.c
@@ -341,6 +341,7 @@ char *sys_terrlist[ETMAXERR-ETBASEOFF+2] =
    "castor::tape::net::acceptConnection interrupted",
    "Label information not found in memory",
    "Multi-drive reservations are not supported",
+   "No memory available for label information",
    "BAD ERROR NUMBER"
   };
 
diff --git a/mediachanger/castorrmc/h/serrno.h b/mediachanger/castorrmc/h/serrno.h
index b93142875428bb396fcd52e89671cf9c8d1450b4..90763ecaca5f6b2e44a9004adfc4d66a820df1fd 100644
--- a/mediachanger/castorrmc/h/serrno.h
+++ b/mediachanger/castorrmc/h/serrno.h
@@ -345,7 +345,8 @@
 #define ETNETACCEPTINTR ETBASEOFF+34    /* castor::tape::net::acceptConnection interrupted */
 #define ETNOLBLINFO	ETBASEOFF+35    /* Label information not found in memory */
 #define ETMLTDRVRSV	ETBASEOFF+36    /* Multi-drive reservations are not supported */
-#define ETMAXERR        ETBASEOFF+36
+#define ETNOLBLINFOMEM	ETBASEOFF+37    /* No memory available for label information */
+#define ETMAXERR        ETBASEOFF+37
 
 /*
  *------------------------------------------------------------------------