diff --git a/wrapper-scripts/sas2ircu-status b/wrapper-scripts/sas2ircu-status
index 9aeba06..bc67bb0 100755
--- a/wrapper-scripts/sas2ircu-status
+++ b/wrapper-scripts/sas2ircu-status
@@ -95,7 +95,7 @@ def getDiskList(ctrlnmbr):
   slotid=''
   realid=['','']
   for line in res:
-    if re.match('^Device is a Hard disk.*$',line) or re.match('^Device is a Enclosure services device.*$',line):
+    if re.match('^Device is a Hard disk.*$',line) or re.match('^Device is a Enclosure services device.*$',line) or re.match('^Device is a unknown device.*$',line):
       if diskid == -1:
         diskid=diskid+1
       else: