diff --git a/packages/initramfs/sysutils/busybox-initramfs/build b/packages/initramfs/sysutils/busybox-initramfs/build
index 5b7ff3774e..9314eee63c 100755
--- a/packages/initramfs/sysutils/busybox-initramfs/build
+++ b/packages/initramfs/sysutils/busybox-initramfs/build
@@ -31,8 +31,8 @@ else
 fi
 
 # optimize for size
-#  CFLAGS=`echo $CFLAGS | sed -e "s|-Ofast|-Os|"`
-#  CFLAGS=`echo $CFLAGS | sed -e "s|-O.|-Os|"`
+  CFLAGS=`echo $CFLAGS | sed -e "s|-Ofast|-Os|"`
+  CFLAGS=`echo $CFLAGS | sed -e "s|-O.|-Os|"`
 
 # fails to build with gcc-4.6.1
   strip_lto