diff --git a/debian/scripts/find-firmware.pl b/debian/scripts/find-firmware.pl
index 9492bc9..4d72d4e 100755
--- a/debian/scripts/find-firmware.pl
+++ b/debian/scripts/find-firmware.pl
@@ -8,7 +8,7 @@ die "no directory to scan" if !$dir;
 
 die "no such directory" if ! -d $dir;
 
-die "strange directory name: $dir" if $dir !~ m|^(.*/)?(5.\d.\d+\-\d+\-pve)(/+)?$|;
+die "strange directory name: $dir" if $dir !~ m|^(.*/)?(\d+.\d+.\d+\-\d+\-pve)(/+)?$|;
 
 my $apiver = $2;