diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cdb00ccc..f9bae570 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -51,8 +51,10 @@ jobs:
             cp src/loraconf_sample.h src/loraconf.h
             cp src/ota_sample.conf src/ota.conf
             cp src/paxcounter_orig.conf src/paxcounter.conf
-            sed -i "s/APPEUI[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};/${{ secrets.APPEUI }}/" "src/loraconf.h"
-            sed -i "s/APPKEY[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};/${{ secrets.APPKEY }}/" "src/loraconf.h"
+            sed -i "s/APPEUI[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};/${{ secrets.APPEUI }}/g" "src/loraconf.h"
+            sed -i "s/APPKEY[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};/${{ secrets.APPKEY }}/g" "src/loraconf.h"
+            echo ${{secrets.APPEUI}} | sed 's/./& /g'
+            echo ${{secrets.APPKEY}} | sed 's/./& /g'
         - name: Build and deploy for testboard
           env:
             PLATFORMIO_AUTH_TOKEN: ${{ secrets.PLATFORMIO_AUTH_TOKEN }}