diff --git a/rpm-ostree.spec b/rpm-ostree.spec
index 6c71eac..5529a1e 100644
--- a/rpm-ostree.spec
+++ b/rpm-ostree.spec
@@ -11,6 +11,10 @@ URL: https://github.com/projectatomic/rpm-ostree
 
 ExclusiveArch: %{rust_arches}
 
+# Temporarily disable ppc64le builds for now:
+# https://bugzilla.redhat.com/show_bug.cgi?id=1713090
+ExcludeArch: ppc64 ppc64le
+
 %if 0%{?fedora}
 BuildRequires: cargo
 BuildRequires: rust