diff --git a/build-compare.changes b/build-compare.changes
index 9c3e21c..9269926 100644
--- a/build-compare.changes
+++ b/build-compare.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Aug  5 13:44:51 UTC 2016 - olaf@aepfle.de
+
+- Handle unknown ELF files as different.
+
 -------------------------------------------------------------------
 Wed Apr  6 07:06:58 UTC 2016 - olaf@aepfle.de
 
diff --git a/build-compare.spec b/build-compare.spec
index 8fe757f..1d50013 100644
--- a/build-compare.spec
+++ b/build-compare.spec
@@ -16,14 +16,12 @@
 #
 
 
-%define version_unconverted 20160406T155640.b74db7f
-
 Name:           build-compare
 Summary:        Build Result Compare Script
 License:        GPL-2.0+
 Group:          Development/Tools/Building
 Url:            https://github.com/openSUSE/build-compare
-Version:        20160406T155640.b74db7f
+Version:        20160805T154520.57bb571
 Release:        0
 Source1:        COPYING
 Source2:        same-build-result.sh
diff --git a/pkg-diff.sh b/pkg-diff.sh
index f100be0..fa15509 100644
--- a/pkg-diff.sh
+++ b/pkg-diff.sh
@@ -20,6 +20,8 @@ if test "$#" != 2; then
    exit 1
 fi
 
+test -z $OBJDUMP && OBJDUMP=objdump
+
 # Always clean up on exit
 local_tmpdir=`mktemp -d`
 if test -z "${local_tmpdir}"
@@ -111,7 +113,8 @@ function unjar_l()
 
 filter_disasm()
 {
-   sed -e 's/^ *[0-9a-f]\+://' -e 's/\$0x[0-9a-f]\+/$something/' -e 's/callq *[0-9a-f]\+/callq /' -e 's/# *[0-9a-f]\+/#  /' -e 's/\(0x\)\?[0-9a-f]\+(/offset(/' -e 's/[0-9a-f]\+ </</' -e 's/^<\(.*\)>:/\1:/' -e 's/<\(.*\)+0x[0-9a-f]\+>/<\1 + ofs>/' 
+   local file=$1
+   sed -i -e 's/^ *[0-9a-f]\+://' -e 's/\$0x[0-9a-f]\+/$something/' -e 's/callq *[0-9a-f]\+/callq /' -e 's/# *[0-9a-f]\+/#  /' -e 's/\(0x\)\?[0-9a-f]\+(/offset(/' -e 's/[0-9a-f]\+ </</' -e 's/^<\(.*\)>:/\1:/' -e 's/<\(.*\)+0x[0-9a-f]\+>/<\1 + ofs>/' ${file}
 }
 
 echo "Comparing `basename $oldpkg` to `basename $newpkg`"
@@ -715,18 +718,21 @@ check_single_file()
        fi
        ;;
     ELF*executable*|ELF*[LM]SB\ relocatable*|ELF*[LM]SB\ shared\ object*)
-       objdump -d --no-show-raw-insn old/$file | filter_disasm > $file1
-       if ! test -s $file1; then
+       $OBJDUMP -d --no-show-raw-insn old/$file > $file1
+       ret=$?
+       $OBJDUMP -d --no-show-raw-insn new/$file > $file2
+       if test ${ret}$? != 00 ; then
          # objdump has no idea how to handle it
          if ! diff_two_files; then
-           ret=1
-           break
+           return 1
          fi
-       fi       
-       elfdiff=
+         return 0
+       fi
+       filter_disasm $file1
+       filter_disasm $file2
        sed -i -e "s,old/,," $file1
-       objdump -d --no-show-raw-insn new/$file | filter_disasm > $file2
        sed -i -e "s,new/,," $file2
+       elfdiff=
        if ! diff -u $file1 $file2 > $dfile; then
           echo "$file differs in assembler output"
           head -n 200 $dfile
@@ -735,10 +741,10 @@ check_single_file()
        echo "" >$file1
        echo "" >$file2
        # Don't compare .build-id and .gnu_debuglink sections
-       sections="$(objdump -s new/$file | grep "Contents of section .*:" | sed -r "s,.* (.*):,\1,g" | grep -v -e "\.build-id" -e "\.gnu_debuglink" | tr "\n" " ")"
+       sections="$($OBJDUMP -s new/$file | grep "Contents of section .*:" | sed -r "s,.* (.*):,\1,g" | grep -v -e "\.build-id" -e "\.gnu_debuglink" | tr "\n" " ")"
        for section in $sections; do
-          objdump -s -j $section old/$file | sed "s,^old/,," > $file1
-          objdump -s -j $section new/$file | sed "s,^new/,," > $file2
+          $OBJDUMP -s -j $section old/$file | sed "s,^old/,," > $file1
+          $OBJDUMP -s -j $section new/$file | sed "s,^new/,," > $file2
           if ! diff -u $file1 $file2 > $dfile; then
              echo "$file differs in ELF section $section"
              head -n 200 $dfile