diff --git a/configs/sx8m_defconfig b/configs/sx8m_defconfig
index 4889eb8..19bd813 100644
--- a/configs/sx8m_defconfig
+++ b/configs/sx8m_defconfig
@@ -12,6 +12,7 @@ CONFIG_BSD_PROCESS_ACCT_V3=y
 CONFIG_TASKSTATS=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_PSI=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_NUMA_BALANCING=y