diff --git a/libguestfs.spec b/libguestfs.spec
index 07e6025..8426d30 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -45,11 +45,11 @@ Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
 Version:       1.43.1
-Release:       4%{?dist}
+Release:       5%{?dist}
 License:       LGPLv2+
 
-# No kernel https://fedoraproject.org/wiki/Changes/Stop_Building_i686_Kernels
-ExcludeArch:   i686
+# Build only for architectures that have a kernel
+ExclusiveArch: %{kernel_arches}
 
 # Source and patches.
 URL:           http://libguestfs.org/
@@ -1185,6 +1185,9 @@ rm ocaml/html/.gitignore
 
 
 %changelog
+* Mon Aug 10 2020 Merlin Mathesius <mmathesi@redhat.com> - 1.43.1-5
+- Use ExclusiveArch: %%{kernel_arches}
+
 * Fri Jul 31 2020 Richard W.M. Jones <rjones@redhat.com> - 1:1.43.1-4
 - Disable then reenable LTO.
   https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/ULGH5JYL7MHKDKTINJLOEN2QG6LOHWH7/