diff --git a/ghc-blaze-markup.changes b/ghc-blaze-markup.changes
index 93b2d1b..ccdf79c 100644
--- a/ghc-blaze-markup.changes
+++ b/ghc-blaze-markup.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 10:44:10 UTC 2020 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-blaze-markup.spec b/ghc-blaze-markup.spec
index 3a52d8d..49d05c8 100644
--- a/ghc-blaze-markup.spec
+++ b/ghc-blaze-markup.spec
@@ -30,6 +30,12 @@ BuildRequires:  ghc-blaze-builder-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-rpm-macros
 BuildRequires:  ghc-text-devel
+# 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-HUnit-devel
 BuildRequires:  ghc-QuickCheck-devel