diff --git a/components/esp_hw_support/port/esp32c3/rtc_sleep.c b/components/esp_hw_support/port/esp32c3/rtc_sleep.c
index dbec3eab80..b1bc5d81fb 100644
--- a/components/esp_hw_support/port/esp32c3/rtc_sleep.c
+++ b/components/esp_hw_support/port/esp32c3/rtc_sleep.c
@@ -30,7 +30,7 @@
 void rtc_sleep_pu(rtc_sleep_pu_config_t cfg)
 {
     REG_SET_FIELD(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_LSLP_MEM_FORCE_PU, cfg.dig_fpu);
-    REG_SET_FIELD(RTC_CNTL_PWC_REG, RTC_CNTL_FASTMEM_FORCE_LPU, cfg.rtc_fpu);
+    REG_SET_FIELD(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_FASTMEM_FORCE_LPU, cfg.rtc_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_DC_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_PBUS_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_AGC_MEM_FORCE_PU, cfg.fe_fpu);
diff --git a/components/esp_hw_support/port/esp32h2/rtc_sleep.c b/components/esp_hw_support/port/esp32h2/rtc_sleep.c
index 7f2a6522d5..563bbd1658 100644
--- a/components/esp_hw_support/port/esp32h2/rtc_sleep.c
+++ b/components/esp_hw_support/port/esp32h2/rtc_sleep.c
@@ -47,7 +47,7 @@ static const char *TAG = "rtc_sleep";
 void rtc_sleep_pu(rtc_sleep_pu_config_t cfg)
 {
     REG_SET_FIELD(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_LSLP_MEM_FORCE_PU, cfg.dig_fpu);
-    REG_SET_FIELD(RTC_CNTL_PWC_REG, RTC_CNTL_FASTMEM_FORCE_LPU, cfg.rtc_fpu);
+    REG_SET_FIELD(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_FASTMEM_FORCE_LPU, cfg.rtc_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_DC_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_PBUS_MEM_FORCE_PU, cfg.fe_fpu);
     REG_SET_FIELD(SYSCON_FRONT_END_MEM_PD_REG, SYSCON_AGC_MEM_FORCE_PU, cfg.fe_fpu);