diff --git a/configs/mx31pdk_defconfig b/configs/mx31pdk_defconfig
index 48c46a0..0f78a63 100644
--- a/configs/mx31pdk_defconfig
+++ b/configs/mx31pdk_defconfig
@@ -25,4 +25,5 @@
 CONFIG_SMC911X=y
 CONFIG_SMC911X_BASE=0xB6000000
 CONFIG_SMC911X_32_BIT=y
+CONFIG_SPI=y
 CONFIG_MXC_SPI=y