diff --git a/MassStorageCloner/blkwrite.sh b/MassStorageCloner/blkwrite.sh
index 400323496567b213818af28b1f070561193d0aef..94856697324b961a2f65cb36a6b2933aeb528cec 100755
--- a/MassStorageCloner/blkwrite.sh
+++ b/MassStorageCloner/blkwrite.sh
@@ -57,7 +57,7 @@ if [ "x${TGT%%[0-9]*}" == "x$TGT" ]
 then
   # have a "master" block device
   echo "adding partitions for $TGT with partx"
-  partx -a "$TGT"
+  partx -a "$TGT" || true
 fi
 
 if [ x$res == x0 ]