diff --git a/target/linux/gemini/config-default b/target/linux/gemini/config-default
index 4160ea4631..238720e127 100644
--- a/target/linux/gemini/config-default
+++ b/target/linux/gemini/config-default
@@ -16,6 +16,7 @@ CONFIG_ATA=m
 CONFIG_BASE_SMALL=0
 # CONFIG_BINARY_PRINTF is not set
 CONFIG_BITREVERSE=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,jffs2 noinitrd console=ttyS0,19200 mem=32M"
 CONFIG_CPU_32=y
 CONFIG_CPU_32v4=y