diff --git a/.github/workflows/cmake-single-platform.yml b/.github/workflows/cmake-single-platform.yml
index 26ed21e..578564d 100644
--- a/.github/workflows/cmake-single-platform.yml
+++ b/.github/workflows/cmake-single-platform.yml
@@ -38,7 +38,7 @@ jobs:
         PICO_SDK_PATH: ${{ env.PICO_SDK_PATH }}
       run: |
         mkdir -p build
-        gcc -o build/makefsdata -I{$PICO_SDK_PATH}/lib/lwip/src/include/ -Iinclude -I. makefsdata/makefsdata.c
+        gcc -o build/makefsdata -I$PICO_SDK_PATH/lib/lwip/src/include/ -Iinclude -I. makefsdata/makefsdata.c
         ./build/makefsdata ./fs -f:include/pico_printer_fs.c
         cd build
         cmake ..