diff --git a/afl.changes b/afl.changes
index e6c3b4a..d9c06f7 100644
--- a/afl.changes
+++ b/afl.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue May 19 07:26:27 UTC 2015 - astieger@suse.com
+
+- builds for i586 x86_64 only
+
 -------------------------------------------------------------------
 Mon May 18 17:12:36 UTC 2015 - astieger@suse.com
 
diff --git a/afl.spec b/afl.spec
index 3104504..dc58d95 100644
--- a/afl.spec
+++ b/afl.spec
@@ -28,6 +28,7 @@ Source1:        afl-rpmlintrc
 Patch1:         afl-1.58b-fix-paths.patch
 BuildRequires:  gcc-c++
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+ExclusiveArch:  i586 x86_64
 
 %description
 American fuzzy lop is a security-oriented fuzzer that employs a novel type of compile-time instrumentation and genetic algorithms to automatically discover clean, interesting test cases that trigger new internal states in the targeted binary. This substantially improves the functional coverage for the fuzzed code. The compact synthesized corpora produced by the tool are also useful for seeding other, more labor- or resource-intensive testing regimes down the road.