diff --git a/jdom.spec b/jdom.spec
index 270dbe2..0c2e1f4 100644
--- a/jdom.spec
+++ b/jdom.spec
@@ -11,6 +11,8 @@ Group:          Development/Libraries/Java
 Source0:        http://www.jdom.org/dist/source/jdom-1.0.tar.gz
 Patch0:         %{name}-crosslink.patch
 Requires:       xalan-j2 >= 0:2.2.0
+BuildRequires:  java-1.4.2-ibm
+BuildRequires:  java-1.4.2-ibm-devel
 BuildRequires:  jpackage-utils >= 0:1.5
 BuildRequires:  java-javadoc
 BuildRequires:  ant