diff --git a/nss-setup/config-nss.seed b/nss-setup/config-nss.seed
index 1645b49993..7d3aa82796 100644
--- a/nss-setup/config-nss.seed
+++ b/nss-setup/config-nss.seed
@@ -61,7 +61,7 @@ CONFIG_DEVEL=y
 CONFIG_EXPERIMENTAL=y
 CONFIG_TOOLCHAINOPTS=y
 CONFIG_TARGET_OPTIONS=y
-CONFIG_TARGET_OPTIMIZATION="-O3 -pipe -mcpu=cortex-a53+crc+crypto"
+CONFIG_TARGET_OPTIMIZATION="-O2 -pipe -mcpu=cortex-a53+crc+crypto"
 CONFIG_TARGET_INIT_PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/usr/bin:/opt/bin:/opt/sbin:/opt/usr/sbin"
 CONFIG_USE_GC_SECTIONS=y