diff --git a/src/PVE/Storage/ZFSPoolPlugin.pm b/src/PVE/Storage/ZFSPoolPlugin.pm
index d8d8d0f..3b3456b 100644
--- a/src/PVE/Storage/ZFSPoolPlugin.pm
+++ b/src/PVE/Storage/ZFSPoolPlugin.pm
@@ -368,9 +368,9 @@ sub zfs_delete_zvol {
 
         eval { $class->zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); };
         if ($err = $@) {
-            if ($err =~ m/^zfs error:(.*): dataset is busy.*/) {
+            if ($err =~ m/dataset is busy/) {
                 sleep(1);
-            } elsif ($err =~ m/^zfs error:.*: dataset does not exist.*$/) {
+            } elsif ($err =~ m/dataset does not exist/) {
                 $err = undef;
                 last;
             } else {