diff --git a/rust.spec b/rust.spec
index ee99da6..6cf3370 100644
--- a/rust.spec
+++ b/rust.spec
@@ -74,7 +74,7 @@ Conflicts:      rustc-bootstrap
 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:  %{ix86} x86_64 armv7 aarch64 ppc64 ppc64le s390x
+ExclusiveArch:  %{ix86} x86_64 %{arm} aarch64 ppc64 ppc64le s390x
 
 %if 0%{?suse_version}
 BuildRequires:  fdupes