diff --git a/arch/arm/configs/sdxpoorwills-perf_defconfig b/arch/arm/configs/sdxpoorwills-perf_defconfig
index ff8a523..bde40e0 100644
--- a/arch/arm/configs/sdxpoorwills-perf_defconfig
+++ b/arch/arm/configs/sdxpoorwills-perf_defconfig
@@ -276,6 +276,7 @@
 CONFIG_SPS_SUPPORT_NDP_BAM=y
 CONFIG_USB_BAM=y
 CONFIG_REMOTE_SPINLOCK_MSM=y
+CONFIG_MAILBOX=y
 CONFIG_QCOM_SCM=y
 CONFIG_MSM_BOOT_STATS=y
 CONFIG_MSM_SMEM=y
diff --git a/arch/arm/configs/sdxpoorwills_defconfig b/arch/arm/configs/sdxpoorwills_defconfig
index 6965607..c239ca8 100644
--- a/arch/arm/configs/sdxpoorwills_defconfig
+++ b/arch/arm/configs/sdxpoorwills_defconfig
@@ -271,6 +271,7 @@
 CONFIG_SPS=y
 CONFIG_SPS_SUPPORT_NDP_BAM=y
 CONFIG_HWSPINLOCK_QCOM=y
+CONFIG_MAILBOX=y
 CONFIG_QCOM_SMEM=y
 CONFIG_QCOM_SMD=y
 CONFIG_QCOM_SCM=y