diff --git a/scripts/start.sh b/scripts/start.sh
index 3d8a585d..b309216a 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -19,6 +19,7 @@ if [ -f "on_sd_start.bat" ]; then
     exit 1
 fi
 
+unset PYTHONHOME
 
 # set legacy installer's PATH, if it exists
 if [ -e "installer" ]; then export PATH="$(pwd)/installer/bin:$PATH"; fi