diff --git a/xalan-j2.spec b/xalan-j2.spec
index 930cfa8..8c674ac 100644
--- a/xalan-j2.spec
+++ b/xalan-j2.spec
@@ -32,7 +32,7 @@
 
 Name:           xalan-j2
 Version:        2.7.2
-Release:        2%{?dist}
+Release:        3%{?dist}
 Epoch:          0
 Summary:        Java XSLT processor
 # src/org/apache/xpath/domapi/XPathStylesheetDOM3Exception.java is W3C
@@ -145,7 +145,7 @@ ln -sf $(build-classpath ant) ant.jar
 popd
 export CLASSPATH=$(build-classpath glassfish-servlet-api)
 
-ant \
+ant -Dcompiler.source=1.8 -Dcompiler.target=1.8 \
   -Djava.awt.headless=true \
   -Dapi.j2se=%{_javadocdir}/java \
   -Dbuild.xalan-interpretive.jar=build/xalan-interpretive.jar \
@@ -205,6 +205,9 @@ mv %{_javadir}/jaxp_transform_impl.jar{.tmp,} || :
 %{_datadir}/%{name}
 
 %changelog
+* Fri Jun 19 2020 Mat Booth <mat.booth@redhat.com> - 0:2.7.2-3
+- Allow building against Java 11
+
 * Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0:2.7.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild