diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c87ce9e..4a90432 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -42,7 +42,7 @@ jobs:
       - name: Compile Sketch
         run: |
           arduino-cli compile \
-          --fqbn "esp32:esp32:esp32:PartitionScheme=huge_app,FlashMode=dio,FlashFreq=40m,FlashSize=4M" \
+          --fqbn "esp32:esp32:esp32:PartitionScheme=huge_app,FlashMode=dio,FlashFreq=40,FlashSize=4M" \
           --build-path build \
           firmware/firmware.ino