diff --git a/contrib/build-wine/build-electrum-git.sh b/contrib/build-wine/build-electrum-git.sh
index 6de55ba4..fdcc2bbb 100755
--- a/contrib/build-wine/build-electrum-git.sh
+++ b/contrib/build-wine/build-electrum-git.sh
@@ -10,7 +10,7 @@ fi
 # These settings probably don't need any change
 export WINEPREFIX=/opt/wine64
 export PYTHONHASHSEED=22
-
+export PYTHONDONTWRITEBYTECODE=1
 
 PYHOME=c:/python$PYTHON_VERSION
 PYTHON="wine $PYHOME/python.exe -OO -B"