diff --git a/variants/thinknode_m8/platformio.ini b/variants/thinknode_m8/platformio.ini
index 47d3a3fcd..5282f280f 100644
--- a/variants/thinknode_m8/platformio.ini
+++ b/variants/thinknode_m8/platformio.ini
@@ -44,6 +44,7 @@ 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 =
@@ -111,7 +112,6 @@ 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 =
@@ -143,7 +143,6 @@ 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 =