diff --git a/rpmrc b/rpmrc
index 7aee3b6..899d788 100644
--- a/rpmrc
+++ b/rpmrc
@@ -3,7 +3,7 @@ include: /usr/lib/rpm/rpmrc
 optflags: i386 %{__global_cflags} -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables
 optflags: i486 %{__global_cflags} -m32 -march=i486 -fasynchronous-unwind-tables
 optflags: i586 %{__global_cflags} -m32 -march=i586 -mtune=generic -fasynchronous-unwind-tables
-optflags: i686 %{__global_cflags} -m32 -march=i686 -mtune=generic -fasynchronous-unwind-tables
+optflags: i686 %{__global_cflags} -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables
 optflags: athlon %{__global_cflags} -m32 -march=athlon -fasynchronous-unwind-tables
 optflags: ia64 %{__global_cflags}
 optflags: x86_64 %{__global_cflags} -m64 -mtune=generic
@@ -64,11 +64,11 @@ optflags: s390x %{__global_cflags} -m64 -march=z9-109 -mtune=z10
 
 # set build arch to fedora buildarches on hardware capable of running it
 # saves having to do rpmbuild --target=
-buildarchtranslate: athlon: i586
-buildarchtranslate: geode: i586
-buildarchtranslate: pentium4: i586
-buildarchtranslate: pentium3: i586
-buildarchtranslate: i686: i586
+buildarchtranslate: athlon: i686
+buildarchtranslate: geode: i686
+buildarchtranslate: pentium4: i686
+buildarchtranslate: pentium3: i686
+buildarchtranslate: i686: i686
 buildarchtranslate: i586: i586
 
 buildarchtranslate: sparcv9: sparcv9