diff --git a/build.sh b/build.sh
index 6e2e8cfb..8fc513d2 100755
--- a/build.sh
+++ b/build.sh
@@ -231,8 +231,11 @@ build_companion_firmwares() {
 }
 
 build_wio_tracker_l1_firmwares() {
+  local _saved_version="$FIRMWARE_VERSION"
+  export FIRMWARE_VERSION="${FIRMWARE_VERSION}-Plus"
   build_firmware "WioTrackerL1_companion_radio_usb_settings"
   build_firmware "WioTrackerL1_companion_radio_ble_settings"
+  export FIRMWARE_VERSION="$_saved_version"
 }
 
 build_room_server_firmwares() {
diff --git a/variants/wio-tracker-l1/platformio.ini b/variants/wio-tracker-l1/platformio.ini
index 26ed87b5..115d686f 100644
--- a/variants/wio-tracker-l1/platformio.ini
+++ b/variants/wio-tracker-l1/platformio.ini
@@ -68,7 +68,6 @@ build_flags = ${WioTrackerL1.build_flags}
   -D OFFLINE_QUEUE_SIZE=256
   -D PIN_BUZZER=12
   -D QSPIFLASH=1
-  -D FIRMWARE_VERSION='"v1.15.0-Plus"'
 ; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
 ; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
 build_src_filter = ${WioTrackerL1.build_src_filter}
@@ -107,7 +106,6 @@ build_flags = ${WioTrackerL1.build_flags}
   -D PIN_BUZZER=12
   -D QSPIFLASH=1
   -D ADVERT_NAME='"@@MAC"'
-  -D FIRMWARE_VERSION='"v1.15.0-Plus"'
   -D ENV_PIN_SDA=PIN_WIRE1_SDA
   -D ENV_PIN_SCL=PIN_WIRE1_SCL
   ; -D MESH_PACKET_LOGGING=1