diff --git a/ghc-ekg.changes b/ghc-ekg.changes
index f3283f8..cdd56c3 100644
--- a/ghc-ekg.changes
+++ b/ghc-ekg.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 17 12:20:00 UTC 2020 - Ondřej Súkup <mimi.vx@gmail.com>
+ 
+- force i686 arch on i586
+ 
 -------------------------------------------------------------------
 Fri Oct 30 03:00:48 UTC 2020 - psimons@suse.com
 
diff --git a/ghc-ekg.spec b/ghc-ekg.spec
index c7ac190..d9f2bb2 100644
--- a/ghc-ekg.spec
+++ b/ghc-ekg.spec
@@ -39,6 +39,12 @@ BuildRequires:  ghc-text-devel
 BuildRequires:  ghc-time-devel
 BuildRequires:  ghc-transformers-devel
 BuildRequires:  ghc-unordered-containers-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
 
 %description
 This library lets you remotely monitor a running process over HTTP. It provides