diff --git a/src/PVE/Storage.pm b/src/PVE/Storage.pm
index 935d457..2fe995d 100755
--- a/src/PVE/Storage.pm
+++ b/src/PVE/Storage.pm
@@ -115,7 +115,7 @@ PVE::Storage::Plugin->init();
 
 our $ISO_EXT_RE_0 = qr/\.(?:iso|img)/i;
 
-our $VZTMPL_EXT_RE_1 = qr/\.tar\.(gz|xz|zst|bz2)/i;
+our $VZTMPL_EXT_RE_1 = qr/\.(?|(tar)(?!\.)|tar\.(gz|xz|zst|bz2))/i;
 
 our $BACKUP_EXT_RE_2 = qr/\.(tgz|(?:tar|vma)(?:\.(${\PVE::Storage::Plugin::COMPRESSOR_RE}))?)/;
 
diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
index 8acd214..767087b 100644
--- a/src/PVE/Storage/Plugin.pm
+++ b/src/PVE/Storage/Plugin.pm
@@ -1618,7 +1618,7 @@ my $get_subdir_files = sub {
         } elsif ($tt eq 'vztmpl') {
             next if $fn !~ m!/([^/]+$PVE::Storage::VZTMPL_EXT_RE_1)$!;
 
-            $info = { volid => "$sid:vztmpl/$1", format => "t$2" };
+            $info = { volid => "$sid:vztmpl/$1", format => $2 eq 'tar' ? $2 : "t$2" };
 
         } elsif ($tt eq 'backup') {
             next if $fn !~ m!/([^/]+$PVE::Storage::BACKUP_EXT_RE_2)$!;