diff --git a/ant.spec b/ant.spec
index 77dc7f6..361342b 100644
--- a/ant.spec
+++ b/ant.spec
@@ -36,7 +36,7 @@
 
 Name:           ant
 Version:        1.9.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Epoch:          0
 Summary:        Build tool for java
 Summary(it):    Tool per la compilazione di programmi java
@@ -55,11 +55,15 @@ BuildRequires:  ant
 BuildRequires:  ant-junit
 BuildRequires:  junit
 BuildRequires:  xalan-j2
+BuildRequires:  xerces-j2
+BuildRequires:  xml-commons-apis
 
 Requires:       jpackage-utils >= 0:1.7.5
 Requires:       java-devel >= 0:1.5.0
 Requires:       perl
 Requires:       python
+Requires:       xerces-j2
+Requires:       xml-commons-apis
 
 Obsoletes:      %{name}-scripts < %{epoch}:%{version}-%{release}
 Provides:       %{name}-scripts = %{epoch}:%{version}-%{release}
@@ -320,7 +324,8 @@ Javadoc pour %{name}.
 #Fixup version
 find -name build.xml -o -name pom.xml | xargs sed -i -e s/-SNAPSHOT//
 
-sed -i "s/ jaxp_parser_impl xml-commons-apis//" src/script/ant
+# Temporarily commented out, see #994556
+# sed -i "s/ jaxp_parser_impl xml-commons-apis//" src/script/ant
 
 # Fix class-path-in-manifest rpmlint warning
 %patch4
@@ -336,7 +341,7 @@ rm src/tests/junit/org/apache/tools/ant/types/selectors/SignedSelectorTest.java 
    src/tests/junit/org/apache/tools/mail/MailMessageTest.java
 
 #install jars
-build-jar-repository -s -p lib/optional antlr bcel javamail/mailapi jdepend junit log4j oro regexp bsf commons-logging commons-net jsch xalan-j2 xml-commons-resolver xalan-j2-serializer
+build-jar-repository -s -p lib/optional antlr bcel javamail/mailapi jdepend junit log4j oro regexp bsf commons-logging commons-net jsch xalan-j2 xml-commons-resolver xalan-j2-serializer xerces-j2 xml-commons-apis
 
 # Fix file-not-utf8 rpmlint warning
 iconv KEYS -f iso-8859-1 -t utf-8 -o KEYS.utf8
@@ -348,7 +353,7 @@ mv LICENSE.utf8 LICENSE
 %{ant} jars test-jar
 
 %if %with javadoc
-export CLASSPATH=$(build-classpath antlr bcel javamail/mailapi jdepend junit log4j oro regexp bsf commons-logging commons-net jsch xalan-j2 xml-commons-resolver)
+export CLASSPATH=$(build-classpath antlr bcel javamail/mailapi jdepend junit log4j oro regexp bsf commons-logging commons-net jsch xalan-j2 xml-commons-resolver xerces-j2 xml-commons-apis)
 %{ant} javadocs
 %endif
 
@@ -597,6 +602,9 @@ cp -pr build/javadocs/* $RPM_BUILD_ROOT%{_javadocdir}/%{name}
 # -----------------------------------------------------------------------------
 
 %changelog
+* Thu Aug 08 2013 Michal Srb <msrb@redhat.com> - 0:1.9.2-4
+- Temporarily add xerces-j2 and xml-commons-apis to classpath, see #994556
+
 * Fri Jul 26 2013 Mikolaj Izdebski <mizdebsk@redhat.com> - 0:1.9.2-3
 - Rebuilt to regenerate depmap files
 - Resolves: rhbz#988797