diff --git a/components/mdns/test_afl_fuzz_host/sdkconfig.h b/components/mdns/test_afl_fuzz_host/sdkconfig.h
index 4a0e2c54c..e210526a9 100644
--- a/components/mdns/test_afl_fuzz_host/sdkconfig.h
+++ b/components/mdns/test_afl_fuzz_host/sdkconfig.h
@@ -71,7 +71,7 @@
 #define CONFIG_ESP32_BROWNOUT_DET_LVL_SEL_0 1
 #define CONFIG_ESP32_BROWNOUT_DET_LVL 0
 #define CONFIG_ESP32_REDUCE_PHY_TX_POWER 1
-#define CONFIG_ESP32_TIME_SYSCALL_USE_RTC_FRC1 1
+#define CONFIG_ESP32_TIME_SYSCALL_USE_RTC_HRT 1
 #define CONFIG_ESP32_RTC_CLK_SRC_INT_RC 1
 #define CONFIG_ESP32_RTC_CLK_CAL_CYCLES 1024
 #define CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY 2000