diff --git a/.drone.yml b/.drone.yml
index e8d7926..41e3d5c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -16,7 +16,7 @@ steps:
 - name: embedded tests
   commands:
   - cd gateway
-  - pio test -e embedded --without-uploading
+  - LD_LIBRARY_PATH=~/.platformio/packages/tool-simavr/lib/ pio test -e embedded --without-uploading
 
 - name: upload firmware
   commands: