diff --git a/apache-commons-discovery.spec b/apache-commons-discovery.spec
index 9aae1fe..fabcbaa 100644
--- a/apache-commons-discovery.spec
+++ b/apache-commons-discovery.spec
@@ -50,17 +50,17 @@ mvn-rpmbuild install javadoc:aggregate
 
 %install
 # jar
-install -d -m 755 $RPM_BUILD_ROOT%{_javadir}
-install -p -m 644 target/%{short_name}-%{version}.jar $RPM_BUILD_ROOT%{_javadir}/%{name}.jar
+install -d -m 755 %{buildroot}%{_javadir}
+install -p -m 644 target/%{short_name}-%{version}.jar %{buildroot}%{_javadir}/%{name}.jar
 ln -sf %{name}.jar %{buildroot}%{_javadir}/%{short_name}.jar
 
-mkdir -p $RPM_BUILD_ROOT%{_mavenpomdir}
-install -pm 644 pom.xml $RPM_BUILD_ROOT%{_mavenpomdir}/JPP-%{short_name}.pom
+mkdir -p %{buildroot}%{_mavenpomdir}
+install -pm 644 pom.xml %{buildroot}%{_mavenpomdir}/JPP-%{short_name}.pom
 %add_maven_depmap JPP-%{short_name}.pom %{short_name}.jar
 
 # javadoc
-install -d -m 755 $RPM_BUILD_ROOT%{_javadocdir}/%{name}
-cp -pr target/site/api*/* $RPM_BUILD_ROOT%{_javadocdir}/%{name}
+install -d -m 755 %{buildroot}%{_javadocdir}/%{name}
+cp -pr target/site/api*/* %{buildroot}%{_javadocdir}/%{name}
 
 %files
 %doc LICENSE.txt NOTICE.txt RELEASE-NOTES.txt