diff --git a/mpich.spec b/mpich.spec
index 357569e..77d4e1a 100644
--- a/mpich.spec
+++ b/mpich.spec
@@ -136,7 +136,9 @@ CONFIGURE_OPTS=(
         --htmldir=%{_datadir}/%{name}/doc
         --with-hwloc
         --with-libfabric
+%ifarch aarch64 ppc64le x86_64
         --with-ucx
+%endif
 )
 #        --with-device=ch3:nemesis