diff --git a/ghc-bloomfilter.changes b/ghc-bloomfilter.changes
index 5176910..0cc49a7 100644
--- a/ghc-bloomfilter.changes
+++ b/ghc-bloomfilter.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 17 12:20:00 UTC 2020 - Ondřej Súkup <mimi.vx@gmail.com>
+ 
+- force i686 arch on i586
+ 
 -------------------------------------------------------------------
 Tue Aug 18 10:44:11 UTC 2020 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-bloomfilter.spec b/ghc-bloomfilter.spec
index 39e26c0..106d20f 100644
--- a/ghc-bloomfilter.spec
+++ b/ghc-bloomfilter.spec
@@ -30,6 +30,12 @@ BuildRequires:  ghc-array-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-deepseq-devel
 BuildRequires:  ghc-rpm-macros
+# GHC dont support i586
+%ifarch %{ix86}
+ExclusiveArch:  i586 i686
+ExclusiveArch:  i686
+%{expand:%%global optflags %(echo "%{optflags}"|sed -e s/i586/i686/) -march=i686 -mtune=generic}
+%endif
 %if %{with tests}
 BuildRequires:  ghc-QuickCheck-devel
 BuildRequires:  ghc-random-devel