diff --git a/test/t-pvcreate-operation.sh b/test/t-pvcreate-operation.sh
index 72560c93b..3bd2f7bd8 100755
--- a/test/t-pvcreate-operation.sh
+++ b/test/t-pvcreate-operation.sh
@@ -114,4 +114,5 @@ dd if=/dev/zero of=$dev1 bs=1024 count=64
 mkswap $dev1
 blkid -c /dev/null $dev1 | grep "swap"
 pvcreate -f $dev1
-blkid -c /dev/null $dev1 | not grep "swap"
+# blkid cannot make up its mind whether not finding anything it knows is a failure or not
+(blkid -c /dev/null $dev1 || true) | not grep "swap"