diff --git a/components/esp_system/fpga_overrides_clk.c b/components/esp_system/fpga_overrides_clk.c
index ce3a889416..bd50439549 100644
--- a/components/esp_system/fpga_overrides_clk.c
+++ b/components/esp_system/fpga_overrides_clk.c
@@ -30,6 +30,7 @@
 #include "esp32h2/rom/rtc.h"
 #elif CONFIG_IDF_TARGET_ESP32H21
 #include "esp32h21/rom/rtc.h"
+#include "esp_private/esp_pmu.h"
 #elif CONFIG_IDF_TARGET_ESP32P4
 #include "esp32p4/rom/rtc.h"
 #elif CONFIG_IDF_TARGET_ESP32C5