diff --git a/ghc-monad-control.changes b/ghc-monad-control.changes
index 1838c81..b36fc0c 100644
--- a/ghc-monad-control.changes
+++ b/ghc-monad-control.changes
@@ -1,7 +1,7 @@
 -------------------------------------------------------------------
 Thu Oct 17 12:20:00 UTC 2020 - Ondřej Súkup <mimi.vx@gmail.com>
  
-- force i686 arch on i586
+- disable %{ix86} build
  
 -------------------------------------------------------------------
 Tue Aug 18 10:45:29 UTC 2020 - Peter Simons <psimons@suse.com>
diff --git a/ghc-monad-control.spec b/ghc-monad-control.spec
index 04ec461..7378cbb 100644
--- a/ghc-monad-control.spec
+++ b/ghc-monad-control.spec
@@ -30,12 +30,7 @@ BuildRequires:  ghc-stm-devel
 BuildRequires:  ghc-transformers-base-devel
 BuildRequires:  ghc-transformers-compat-devel
 BuildRequires:  ghc-transformers-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
+ExcludeArch:    %{ix86}
 
 %description
 This package defines the type class 'MonadBaseControl', a subset of 'MonadBase'