diff --git a/ghc-mustache.changes b/ghc-mustache.changes
index 5134e46..55f114a 100644
--- a/ghc-mustache.changes
+++ b/ghc-mustache.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 17 12:20:00 UTC 2020 - Ondřej Súkup <mimi.vx@gmail.com>
+ 
+- force i686 arch on i586
+ 
 -------------------------------------------------------------------
 Thu Sep 17 07:31:28 UTC 2020 - Michel Normand <normand@linux.vnet.ibm.com>
 
diff --git a/ghc-mustache.spec b/ghc-mustache.spec
index 8a9f892..3bbcee2 100644
--- a/ghc-mustache.spec
+++ b/ghc-mustache.spec
@@ -44,6 +44,12 @@ BuildRequires:  ghc-th-lift-devel
 BuildRequires:  ghc-unordered-containers-devel
 BuildRequires:  ghc-vector-devel
 BuildRequires:  ghc-yaml-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-base-unicode-symbols-devel
 BuildRequires:  ghc-hspec-devel