diff --git a/build-compare.changes b/build-compare.changes
index 990a1a6..a632116 100644
--- a/build-compare.changes
+++ b/build-compare.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jul 15 13:31:30 CEST 2009 - coolo@novell.com
+
+- overwrite duplicated files in zip files
+
 -------------------------------------------------------------------
 Tue Jul 14 11:46:04 CEST 2009 - coolo@novell.com
 
diff --git a/build-compare.spec b/build-compare.spec
index 8076516..9095ce2 100644
--- a/build-compare.spec
+++ b/build-compare.spec
@@ -24,7 +24,7 @@ Group:          Development/Tools/Building
 AutoReqProv:    on
 Summary:        Build Result Compare Script
 Version:        2009.01.27
-Release:        9
+Release:        10
 Source:         same-build-result.sh
 Source1:        rpm-check.sh
 Source2:        COPYING
diff --git a/rpm-check.sh b/rpm-check.sh
index bb27884..42e7bfe 100644
--- a/rpm-check.sh
+++ b/rpm-check.sh
@@ -225,9 +225,9 @@ check_single_file()
        pwd=$PWD
        fdir=`dirname $file`
        cd old/$fdir
-       unzip -qq `basename $file`
+       unzip -o -qq `basename $file`
        cd $pwd/new/$fdir
-       unzip -qq `basename $file`
+       unzip -o -qq `basename $file`
        cd $pwd
        local ret=0
        for f in $flist; do