diff --git a/OpenSP.spec b/OpenSP.spec
index 203ac16..4d6c8aa 100644
--- a/OpenSP.spec
+++ b/OpenSP.spec
@@ -1,13 +1,13 @@
 Name:          OpenSP
 Version:       1.5.2
-Release:       3mamba
+Release:       4mamba
 Summary:       A suite of SGML processing tools
 Group:         Applications/Publishing
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://openjade.sourceforge.net/
-Source:        http://switch.dl.sourceforge.net/sourceforge/openjade/%{name}-%{version}.tar.gz
+Source:        http://downloads.sourceforge.net/sourceforge/openjade/%{name}-%{version}.tar.gz
 Patch0:        OpenSP-1.5.1-LITLEN-1.patch
 Patch1:        OpenSP-1.5.1-gcc34-1.patch
 Patch2:        OpenSP-1.5.1-gcc41.patch
@@ -18,6 +18,7 @@ BuildRequires: glibc-devel
 BuildRequires: libgcc
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
+BuildRequires: sgml-common
 BuildRequires: xmlto
 BuildRoot:     %{_tmppath}/%{name}-%{version}-build
 
@@ -45,9 +46,12 @@ Obsoletes:     libOpenSP-devel
 OpenSP is a suite of SGML processing tools.
 This is the devel package.
 
+%debug_package
+
 %prep
 %setup -q -n OpenSP-%{version}
 %patch0 -p1 
+sed -i "s,| arm-\*  |,| aarch64-\* | arm-\*  |," config.sub
 #%patch1 -p1 
 #%patch2 -p1
 
@@ -113,6 +117,9 @@ test x%{buildroot} != x/ && rm -rf %{buildroot}
 %{_libdir}/libsp.so
 
 %changelog
+* Fri Nov 27 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.2-4mamba
+- build require sgml-common, added debug package
+
 * Wed Dec 01 2010 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.2-3mamba
 - fix sgmlnorm symlink to osgmlnorm