diff --git a/variants/thinknode_m8/platformio.ini b/variants/thinknode_m8/platformio.ini
index db19e44664..57f2a938cb 100644
--- a/variants/thinknode_m8/platformio.ini
+++ b/variants/thinknode_m8/platformio.ini
@@ -40,6 +40,7 @@ build_flags = ${nrf52_base.build_flags}
   -D LORA_TX_POWER=22
 build_src_filter = ${nrf52_base.build_src_filter}
   +<helpers/*.cpp>
+  +<helpers/sensors>
   +<ThinkNodeM8Board.cpp>
   +<../variants/thinknode_m8>
 lib_deps =
@@ -110,7 +111,6 @@ build_src_filter = ${ThinkNode_M8.build_src_filter}
   +<helpers/ui/buzzer.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/ui/RotaryInputGPIO.cpp>
-  +<helpers/sensors/EnvironmentSensorManager.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
@@ -144,7 +144,6 @@ build_src_filter = ${ThinkNode_M8.build_src_filter}
   +<helpers/ui/buzzer.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<helpers/ui/RotaryInputGPIO.cpp>
-  +<helpers/sensors/EnvironmentSensorManager.cpp>
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =