diff -up Archive-Zip-1.30/lib/Archive/Zip/Member.pm.bug Archive-Zip-1.30/lib/Archive/Zip/Member.pm

--- Archive-Zip-1.30/lib/Archive/Zip/Member.pm.bug	2009-06-30 13:51:10.000000000 +0200

+++ Archive-Zip-1.30/lib/Archive/Zip/Member.pm	2012-03-19 13:13:11.028294275 +0100

@@ -159,13 +159,13 @@ sub bitFlag {

     # Set General Purpose Bit Flags according to the desiredCompressionLevel setting

     if ( $self->desiredCompressionLevel == 1 || $self->desiredCompressionLevel == 2 ) {

-        $self->{'bitFlag'} = DEFLATING_COMPRESSION_FAST;

+        $self->{'bitFlag'} |= DEFLATING_COMPRESSION_FAST;

     } elsif ( $self->desiredCompressionLevel == 3 || $self->desiredCompressionLevel == 4

           || $self->desiredCompressionLevel == 5 || $self->desiredCompressionLevel == 6

           || $self->desiredCompressionLevel == 7 ) {

-        $self->{'bitFlag'} = DEFLATING_COMPRESSION_NORMAL;

+        $self->{'bitFlag'} |= DEFLATING_COMPRESSION_NORMAL;

     } elsif ( $self->desiredCompressionLevel == 8 || $self->desiredCompressionLevel == 9 ) {

-        $self->{'bitFlag'} = DEFLATING_COMPRESSION_MAXIMUM;

+        $self->{'bitFlag'} |= DEFLATING_COMPRESSION_MAXIMUM;

     }

     $self->{'bitFlag'};

 }