diff --git a/asciidoc-pve.in b/asciidoc-pve.in
index 83a6c5c..83f59eb 100644
--- a/asciidoc-pve.in
+++ b/asciidoc-pve.in
@@ -23,7 +23,7 @@ while (<main::DATA>) { $data_str .= $_; }
 
 my $fileinfo = decode_json($data_str);
 
-my $tmpprefix = ".asciidoc-pve-tmp_";
+my $tmpprefix = '.asciidoc-pve-tmp'.$$.'_';
 
 my $adoc_source_dir = "/usr/share/pve-doc-generator";