diff --git a/arch/arm/configs/am3517_evm_defconfig b/arch/arm/configs/am3517_evm_defconfig
index abe9966..edae1c2 100644
--- a/arch/arm/configs/am3517_evm_defconfig
+++ b/arch/arm/configs/am3517_evm_defconfig
@@ -201,7 +201,7 @@
 # CONFIG_OMAP_DEBUG_POWERDOMAIN is not set
 # CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set
 CONFIG_OMAP_RESET_CLOCKS=y
-# CONFIG_OMAP_MUX is not set
+CONFIG_OMAP_MUX=y
 # CONFIG_OMAP_MCBSP is not set
 # CONFIG_OMAP_MBOX_FWK is not set
 # CONFIG_OMAP_MPU_TIMER is not set