diff --git a/rust.spec b/rust.spec
index 3ddb25b..18a6844 100644
--- a/rust.spec
+++ b/rust.spec
@@ -78,6 +78,10 @@ BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 # Restrict the architectures as building rust relies on being initially
 # bootstrapped before we can build the n+1 release
 ExclusiveArch:  x86_64 %{arm} aarch64 ppc64 ppc64le s390x
+%ifarch %ix86
+ExclusiveArch: i586 i686
+BuildArch: i686
+%endif
 
 %if 0%{?suse_version}
 BuildRequires:  fdupes