diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b47ae62f..fa45e7ad 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 env: 
   KALEIDOSCOPE_ETC_DIR: $(GITHUB_WORKSPACE)/etc
   KALEIDOSCOPE_BUILDER_DIR: $(GITHUB_WORKSPACE)/bin
-  ARDUINO_DIRECTORIES_USER: .arduino/user
+  ARDUINO_DIRECTORIES_USER: $(GITHIB_WORKSPACE)/.arduino/user
   BOARD_HARDWARE_PATH: $(ARDUINO_DIRECTORIES_USER)/hardware
 jobs:
   smoke-sketches: