diff --git a/platformio_esp32_envs.ini b/platformio_esp32_envs.ini
index bdfd29ea3..13a27af92 100644
--- a/platformio_esp32_envs.ini
+++ b/platformio_esp32_envs.ini
@@ -18,14 +18,14 @@ extra_scripts             = post:tools/pio/post_esp32.py
 ; more detail: https://embeddedartistry.com/blog/2020/04/13/prefer-gcc-ar-to-ar-in-your-buildsystems/
 ;                            pre:tools/pio/apply_patches.py
 build_unflags             = -Wall
-;                            -fno-lto
+                            -fno-lto
 build_flags               = ${core_esp32_IDF5_1__3_0_2_SPIFFS.build_flags}
 ;                            ${mqtt_flags.build_flags}
                             -DMQTT_MAX_PACKET_SIZE=2048
                             -DCONFIG_FREERTOS_ASSERT_DISABLE
                             -DCONFIG_LWIP_ESP_GRATUITOUS_ARP
                             -fno-strict-aliasing
-;                            -flto
+                            -flto=auto
                             -Wswitch
                             -DCORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_NONE
 monitor_filters           = esp32_exception_decoder