diff --git a/tycho.spec b/tycho.spec
index 192a5e7..a9e48ad 100644
--- a/tycho.spec
+++ b/tycho.spec
@@ -129,6 +129,8 @@ Requires:       ecj >= 4.7.3a-1
 Requires:       maven-clean-plugin
 Requires:       maven-local
 Requires:       xmvn-minimal >= 3
+# Upstream Eclipse no longer supports non-64bit arches
+ExcludeArch:    s390 %{arm} %{ix86}
 BuildArch:      noarch
 # Prebuilt Eclipse bundles needed to build Tycho when Eclipse is not present
 # or when the Eclipse that is present is not compatible