diff --git a/eclipse-jgit.spec b/eclipse-jgit.spec
index 0ff03c0..30a3a3d 100644
--- a/eclipse-jgit.spec
+++ b/eclipse-jgit.spec
@@ -56,6 +56,8 @@ Requires:       jzlib
 Requires:       slf4j
 Requires:       xml-commons-apis
 BuildArch:      noarch
+# Upstream Eclipse no longer supports non-64bit arches
+ExcludeArch:    s390 %{arm} %{ix86}
 
 %description
 A pure Java implementation of the Git version control system.