diff --git a/src/viced/afsfileprocs.c b/src/viced/afsfileprocs.c
index f369cb5d61..2fef7eba5d 100644
--- a/src/viced/afsfileprocs.c
+++ b/src/viced/afsfileprocs.c
@@ -7481,6 +7481,8 @@ init_sys_error_to_et(void)
     sys2et[EDQUOT] = UAEDQUOT;
     sys2et[ENOMEDIUM] = UAENOMEDIUM;
     sys2et[EMEDIUMTYPE] = UAEMEDIUMTYPE;
+
+    sys2et[EIO] = UAEIO;
 }
 
 /* NOTE:  2006-03-01