diff --git a/var/spack/repos/builtin/packages/ibm-java/package.py b/var/spack/repos/builtin/packages/ibm-java/package.py
index 952fa16a7b3..c0a59942e68 100644
--- a/var/spack/repos/builtin/packages/ibm-java/package.py
+++ b/var/spack/repos/builtin/packages/ibm-java/package.py
@@ -44,6 +44,7 @@ class IbmJava(Package):
     provides('java@8')
 
     conflicts('target=x86_64:', msg='ibm-java is only available for ppc64 and ppc64le')
+    conflicts('target=aarch64', msg='ibm-java is only available for ppc64 and ppc64le')
 
     # This assumes version numbers are 4-tuples: 8.0.5.30
     def url_for_version(self, version):