diff --git a/firmware/extra_script.py b/firmware/extra_script.py
new file mode 100644
index 0000000..b09c47d
--- /dev/null
+++ b/firmware/extra_script.py
@@ -0,0 +1,5 @@
+import os
+Import("env")
+
+# include toolchain paths
+env.Replace(COMPILATIONDB_INCLUDE_TOOLCHAIN=True)
diff --git a/firmware/platformio.ini b/firmware/platformio.ini
index 17401a6..897596b 100644
--- a/firmware/platformio.ini
+++ b/firmware/platformio.ini
@@ -14,3 +14,4 @@ board = teensylc
 framework = arduino
 build_flags = -D USB_HID -D LAYOUT_SWEDISH -w
 board_build.f_cpu = 48000000L 
+extra_scripts = pre:extra_script.py