diff --git a/conf/intel/portage/env/O3.conf b/conf/intel/portage/env/O3.conf
index f22a640..d0b2570 100644
--- a/conf/intel/portage/env/O3.conf
+++ b/conf/intel/portage/env/O3.conf
@@ -1,9 +1,3 @@
 # Set -O3 for perf. critical packages
-arch="$(uname -m)"
-if [[ "${arch}" = "x86_64" ]]; then
-	CFLAGS="-O3 -march=x86-64 -pipe"
-	CXXFLAGS="${CFLAGS}"
-elif [[ "${arch}" = "i686" ]]; then
-	CFLAGS="-O3 -march=i686 -pipe"
-	CXXFLAGS="${CFLAGS}"
-fi
+CFLAGS="-O3 -pipe"
+CXXFLAGS="${CFLAGS}"