diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b8b3e5b5..1ca9638a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,7 +4,6 @@ on: [push, pull_request]
 
 env:
   LC_ALL: C
-  KALEIDOSCOPE_ETC_DIR: ${{ github.workspace }}/etc
   ARDUINO_DIRECTORIES_USER: ${{ github.workspace }}/.arduino/user
 jobs:
   smoke-sketches: