diff --git a/sgml-common.spec b/sgml-common.spec
index beca03b..d6852f6 100644
--- a/sgml-common.spec
+++ b/sgml-common.spec
@@ -2,7 +2,7 @@
 
 Name: sgml-common
 Version: 0.6.3
-Release: 48%{?dist}
+Release: 49%{?dist}
 Group: Applications/Text
 
 Summary: Common SGML catalog and DTD files
@@ -23,6 +23,9 @@ Source2: xml.soc
 Source3: html.dcl
 Source4: html.soc
 Source5: http://www.w3.org/%{xmlxsdver}/xml.xsd
+Source6: http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd
+Source7: http://www.w3.org/2001/XMLSchema.dtd
+Source8: http://www.w3.org/2001/datatypes.dtd
 
 Patch0: sgml-common-umask.patch
 Patch1: sgml-common-xmldir.patch
@@ -83,6 +86,10 @@ for type in system uri ; do
 			"http://www.w3.org/$path/xml.xsd" \
 			"file://%{_datadir}/xml/xml.xsd" $XMLCATALOG
 	done
+	# Add xmldsig-core-schema.xsd to catalog
+	%{_bindir}/xmlcatalog --noout --add $type \
+		"http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd" \
+		"file://%{_datadir}/xml/xmldsig-core-schema.xsd" $XMLCATALOG
 done
 # Now put the common DocBook entries in it
 %{_bindir}/xmlcatalog --noout --add "delegatePublic" \
@@ -100,6 +107,15 @@ done
 %{_bindir}/xmlcatalog --noout --add "delegateURI" \
 	"http://www.oasis-open.org/docbook/" \
 	"file://%{_sysconfdir}/sgml/docbook/xmlcatalog" $XMLCATALOG
+for public in "-//W3C//DTD XMLSchema 200102//EN" "-//W3C//DTD XMLSCHEMA 200102//EN" ; do
+	%{_bindir}/xmlcatalog --noout --add "public" \
+		"$public" \
+		"file://%{_datadir}/xml/XMLSchema.dtd" $XMLCATALOG
+done
+%{_bindir}/xmlcatalog --noout --add "system" \
+	"http://www.w3.org/2001/XMLSchema.dtd" \
+	"file://%{_datadir}/xml/XMLSchema.dtd" $XMLCATALOG
+
 # Also create the common DocBook catalog
 %{_bindir}/xmlcatalog --noout --create \
 	$RPM_BUILD_ROOT%{_sysconfdir}/sgml/docbook/xmlcatalog
@@ -110,7 +126,8 @@ rm -f $RPM_BUILD_ROOT%{_datadir}/sgml/xml.dcl
 install -p -m0644 %{SOURCE1} %{SOURCE2} %{SOURCE3} %{SOURCE4} \
 	$RPM_BUILD_ROOT%{_datadir}/sgml
 rm -rf $RPM_BUILD_ROOT%{_datadir}/xml/*
-install -p -m0644 %{SOURCE5} $RPM_BUILD_ROOT%{_datadir}/xml
+install -p -m0644 %{SOURCE5} %{SOURCE6} %{SOURCE7} %{SOURCE8} \
+	$RPM_BUILD_ROOT%{_datadir}/xml
 
 # remove installed doc file and prepare installation with %%doc
 rm $RPM_BUILD_ROOT%{_datadir}/doc/*.html
@@ -128,6 +145,14 @@ if [ $1 -gt 1 ] && [ -e %{_sysconfdir}/xml/catalog ]; then
 				"file://%{_datadir}/xml/xml.xsd" \
 				%{_sysconfdir}/xml/catalog
 		done
+		%{_bindir}/xmlcatalog --noout --add $type \
+			"http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd" \
+			"file://%{_datadir}/xml/xmldsig-core-schema.xsd" %{_sysconfdir}/xml/catalog
+	done
+	for public in "-//W3C//DTD XMLSchema 200102//EN" "-//W3C//DTD XMLSCHEMA 200102//EN" ; do
+		%{_bindir}/xmlcatalog --noout --add "public" \
+			"$public" \
+			"file://%{_datadir}/xml/XMLSchema.dtd" %{_sysconfdir}/xml/catalog
 	done
 fi
 
@@ -161,8 +186,14 @@ fi
 %{_datadir}/sgml/docbook/xmlcatalog
 %dir %{_datadir}/xml
 %{_datadir}/xml/xml.xsd
+%{_datadir}/xml/xmldsig-core-schema.xsd
+%{_datadir}/xml/XMLSchema.dtd
+%{_datadir}/xml/datatypes.dtd
 
 %changelog
+* Tue Jun 12 2018 Jan Pazdziora <jpazdziora@redhat.com> - 0.6.3-49
+- Package and catalog xmldsig-core-schema.xsd, XMLSchema.dtd, and datatypes.dtd
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.6.3-48
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild