diff --git a/target/linux/ar71xx/config-2.6.28 b/target/linux/ar71xx/config-2.6.28
index b4926cee1c8816d6c12b2150d305be8b8633019d..06e738110c7619bd174dacb49e300a40ff3ba2ff 100644
--- a/target/linux/ar71xx/config-2.6.28
+++ b/target/linux/ar71xx/config-2.6.28
@@ -33,6 +33,7 @@ CONFIG_ATHEROS_AR71XX=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="rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200"
diff --git a/target/linux/ar71xx/config-2.6.30 b/target/linux/ar71xx/config-2.6.30
index 1484346eea97fe015c7699a8ce33c417c00c121f..464a45d9ee8fab6fddc291ac5cdf59a6abe76eed 100644
--- a/target/linux/ar71xx/config-2.6.30
+++ b/target/linux/ar71xx/config-2.6.30
@@ -35,6 +35,7 @@ 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="rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200"