diff --git a/plexus-cipher.spec b/plexus-cipher.spec
index 9411f5b..fb3cbbb 100644
--- a/plexus-cipher.spec
+++ b/plexus-cipher.spec
@@ -2,12 +2,13 @@
 
 Name:           plexus-cipher
 Version:        1.7
-Release:        28%{?dist}
+Release:        29%{?dist}
 Summary:        Plexus Cipher: encryption/decryption Component
 License:        ASL 2.0
 # project moved to GitHub and it looks like there is no official website anymore
 URL:            https://github.com/codehaus-plexus/plexus-cipher
 BuildArch:      noarch
+ExclusiveArch:  aarch64 ppc64le s390x x86_64
 
 # git clone https://github.com/sonatype/plexus-cipher.git
 # cd plexus-cipher/
@@ -60,6 +61,9 @@ Plexus Cipher: encryption/decryption Component
 %license LICENSE.txt NOTICE.txt
 
 %changelog
+* Sat Nov 23 2024 Marián Konček <mkoncek@redhat.com> - 1.7-29
+- Disable building on i686
+
 * Wed Nov 20 2024 Marián Konček <mkoncek@redhat.com> - 1.7-28
 - Rebuild with regenerated Requires on Java