diff --git a/bsh.spec b/bsh.spec
index 0ebb516..960bf21 100644
--- a/bsh.spec
+++ b/bsh.spec
@@ -33,7 +33,7 @@
 
 Name:           bsh
 Version:        2.0
-Release:        12.%{reltag}%{?dist}
+Release:        13.%{reltag}%{?dist}
 Epoch:          0
 Summary:        Lightweight Scripting for Java
 URL:            http://www.beanshell.org/
@@ -45,6 +45,7 @@ BuildArch:      noarch
 Source0:        %{name}-%{version}-%{reltag}.tar.gz
 Source1:        %{name}-desktop.desktop
 # Remove bundled jars which cannot be easily verified for licensing
+# Remove code marked as SUN PROPRIETARY/CONFIDENTAIL
 Source2:        generate-tarball.sh
 
 BuildRequires:  javapackages-local
@@ -109,9 +110,6 @@ This package provides %{summary}.
 %prep
 %setup -q -n beanshell-%{version}%{reltag}
 
-# those are now included in JDK itself
-rm -r engine/javax-src
-
 sed -i 's,org.apache.xalan.xslt.extensions.Redirect,http://xml.apache.org/xalan/redirect,' docs/manual/xsl/*.xsl
 
 %mvn_alias :bsh bsh:bsh bsh:bsh-bsf org.beanshell:bsh
@@ -172,6 +170,9 @@ cat scripts/bshdoc.bsh >> %{buildroot}%{_bindir}/bshdoc
 %license LICENSE NOTICE
 
 %changelog
+* Fri Aug 03 2018 Michael Simacek <msimacek@redhat.com> - 0:2.0-13.b6
+- Remove proprietary files from tarball
+
 * Mon Jul 30 2018 Severin Gehwolf <sgehwolf@redhat.com> - 0:2.0-12.b6
 - Add requirement on javapackages-tools for script's usage of
   java-functions.
diff --git a/generate-tarball.sh b/generate-tarball.sh
index 78b7226..bf091f9 100755
--- a/generate-tarball.sh
+++ b/generate-tarball.sh
@@ -17,6 +17,8 @@ tar xf "../${name}-${version}-${reltag}.orig.tar.gz"
 rm -r */lib
 find -name '*.jar' -delete
 find -name '*.class' -delete
+# Files marked as SUN PROPRIETARY/CONFIDENTAIL
+rm -r */engine/javax-src
 
 tar cf "../${name}-${version}-${reltag}.tar.gz" *
 cd ..
diff --git a/sources b/sources
index b81a685..c02c0d3 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (bsh-2.0-b6.tar.gz) = ac65c24fefc9bd46b821b6292f9db35766fc1ad46091baac96c77f131950e6605dee9bf80d9faf1488fd837a0bccab31c466040474805f2bb4b1839acfd2148c
+SHA512 (bsh-2.0-b6.tar.gz) = 22e920fa78d2117cc27074f12a12246cb2923b1d308736b2ed5fd2faa9bbc8b77b4991abc862097cce4e9de473c17a9d9a85ee5bdab5462f4a92c64c3d49bfc1