diff --git a/components/mdns/test_afl_fuzz_host/sdkconfig.h b/components/mdns/test_afl_fuzz_host/sdkconfig.h
index 1b5997b64..e09b70b80 100644
--- a/components/mdns/test_afl_fuzz_host/sdkconfig.h
+++ b/components/mdns/test_afl_fuzz_host/sdkconfig.h
@@ -53,7 +53,7 @@
 #define CONFIG_BTDM_CTRL_BR_EDR_MAX_SYNC_CONN_EFF 0
 #define CONFIG_BTDM_CTRL_PINNED_TO_CORE 0
 #define CONFIG_BTDM_BLE_SLEEP_CLOCK_ACCURACY_INDEX_EFF 1
-#define CONFIG_BT_RESERVE_DRAM 0x0
+#define CONFIG_BTDM_RESERVE_DRAM 0x0
 #define CONFIG_COAP_MBEDTLS_PSK 1
 #define CONFIG_COAP_LOG_DEFAULT_LEVEL 0
 #define CONFIG_ADC_DISABLE_DAC 1