diff --git a/java_cup.spec b/java_cup.spec
index af312aa..ed65718 100644
--- a/java_cup.spec
+++ b/java_cup.spec
@@ -69,9 +69,9 @@ rm -rf java_cup-%{version}/bin/java-cup-11.jar
 %build
 export CLASSPATH=$(build-classpath java_cup java_cup-runtime jflex)
 
-ant -Dcupversion=20150326 -Dsvnversion=65
+%ant -Dcupversion=20150326 -Dsvnversion=65
 find -name parser.cup -delete
-ant javadoc
+%ant javadoc
 
 # inject OSGi manifests
 jar ufm dist/java-cup-%{pkg_version}.jar %{SOURCE2}