diff --git a/target/linux/adm5120/router_be/config-2.6.28 b/target/linux/adm5120/router_be/config-2.6.28
index 144585eacb9ede8c450f4f5453437e6f000ceb17..21cd6145ce92692111c2991132d746e638803c89 100644
--- a/target/linux/adm5120/router_be/config-2.6.28
+++ b/target/linux/adm5120/router_be/config-2.6.28
@@ -25,6 +25,7 @@ CONFIG_BASE_SMALL=0
 # CONFIG_BCM47XX is not set
 CONFIG_BINFMT_MISC=m
 CONFIG_BITREVERSE=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CEVT_R4K=y
 CONFIG_CLASSIC_RCU=y
 CONFIG_CMDLINE="console=ttyS0,115200 rootfstype=squashfs,jffs2"
diff --git a/target/linux/adm5120/router_be/config-2.6.30 b/target/linux/adm5120/router_be/config-2.6.30
index a4a511f06af7622143207367d23fd88238e9dbe9..19326577c3f1c45997ab5aa219e56372001ec90b 100644
--- a/target/linux/adm5120/router_be/config-2.6.30
+++ b/target/linux/adm5120/router_be/config-2.6.30
@@ -28,6 +28,7 @@ CONFIG_BINFMT_MISC=m
 CONFIG_BITREVERSE=y
 # CONFIG_CAVIUM_OCTEON_REFERENCE_BOARD is not set
 # CONFIG_CAVIUM_OCTEON_SIMULATOR is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CEVT_R4K=y
 CONFIG_CEVT_R4K_LIB=y
 CONFIG_CMDLINE="console=ttyS0,115200 rootfstype=squashfs,jffs2"
diff --git a/target/linux/adm5120/router_le/config-2.6.28 b/target/linux/adm5120/router_le/config-2.6.28
index c005048a94eed7b8f3185b22d8fe12fe2677a5fc..37a9f177b9ae86aa93d4e45949f2859fd1dd6237 100644
--- a/target/linux/adm5120/router_le/config-2.6.28
+++ b/target/linux/adm5120/router_le/config-2.6.28
@@ -46,6 +46,7 @@ CONFIG_ATA_SFF=y
 CONFIG_BASE_SMALL=0
 # CONFIG_BCM47XX is not set
 CONFIG_BITREVERSE=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CEVT_R4K=y
 CONFIG_CLASSIC_RCU=y
 CONFIG_CMDLINE="console=ttyS0,115200 rootfstype=squashfs,yaffs2,jffs2"
diff --git a/target/linux/adm5120/router_le/config-2.6.30 b/target/linux/adm5120/router_le/config-2.6.30
index 6d65d796f1640989ffd72dd008f4836ba2c4d3ef..4a3520569860f7598ae1ce3f7c5d30d7e02b75b5 100644
--- a/target/linux/adm5120/router_le/config-2.6.30
+++ b/target/linux/adm5120/router_le/config-2.6.30
@@ -48,6 +48,7 @@ CONFIG_BASE_SMALL=0
 CONFIG_BITREVERSE=y
 # CONFIG_CAVIUM_OCTEON_REFERENCE_BOARD is not set
 # CONFIG_CAVIUM_OCTEON_SIMULATOR is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CEVT_R4K=y
 CONFIG_CEVT_R4K_LIB=y
 CONFIG_CMDLINE="console=ttyS0,115200 rootfstype=squashfs,yaffs2,jffs2"