diff --git a/platformio.ini b/platformio.ini
index 2adeccab..ddfe84a4 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -46,7 +46,7 @@
 default_envs = 
   ; esp32_4MB_S     ;; experimental, optimized for speed
   esp32_4MB_M  ; recommended default
-  esp32_4MB_eth_M
+  esp32_4MB_M_eth
   esp32_4MB_M_debug
   esp32_4MB_XL
   ; esp32_16MB_S    ;; experimental, optimized for speed
@@ -1120,10 +1120,10 @@ build_flags = ${esp32_4MB_M_base.build_flags}
 ; RAM:   [===       ]  25.2% (used 82628 bytes from 327680 bytes)
 ; Flash: [========= ]  94.3% (used 1483793 bytes from 1572864 bytes) WLEDMM: earlier 91.1
 
-[env:esp32_4MB_eth_M]
+[env:esp32_4MB_M_eth]
 extends = esp32_4MB_M_base
 build_flags = ${esp32_4MB_M_base.build_flags}
-  -D WLED_RELEASE_NAME=esp32_4MB_eth_M
+  -D WLED_RELEASE_NAME=esp32_4MB_M_eth
   -D WLED_USE_ETHERNET
   -D RLYPIN=-1 -D BTNPIN=-1 ;; Prevent clash
   -D WLED_DISABLE_ESPNOW ;; ESP-NOW requires wifi, may crash with ethernet only