diff --git a/scripts/toolchain/fbtenv.cmd b/scripts/toolchain/fbtenv.cmd
index 471ce835..aac2a330 100644
--- a/scripts/toolchain/fbtenv.cmd
+++ b/scripts/toolchain/fbtenv.cmd
@@ -31,6 +31,7 @@ if not "%REAL_TOOLCHAIN_VERSION%" == "%FLIPPER_TOOLCHAIN_VERSION%" (
 
 set "HOME=%USERPROFILE%"
 set "PYTHONHOME=%FBT_TOOLCHAIN_ROOT%\python"
+set "PYTHONPATH="
 set "PATH=%FBT_TOOLCHAIN_ROOT%\python;%FBT_TOOLCHAIN_ROOT%\bin;%FBT_TOOLCHAIN_ROOT%\protoc\bin;%FBT_TOOLCHAIN_ROOT%\openocd\bin;%PATH%"
 set "PROMPT=(fbt) %PROMPT%"