diff --git a/contrib/build-wine/build-electrum-git.sh b/contrib/build-wine/build-electrum-git.sh
index 145d9b35b..f54583f1e 100755
--- a/contrib/build-wine/build-electrum-git.sh
+++ b/contrib/build-wine/build-electrum-git.sh
@@ -4,6 +4,7 @@ NAME_ROOT=electrum
 
 # These settings probably don't need any change
 export WINEPREFIX=/opt/wine64
+export WINEDEBUG=-all
 export PYTHONDONTWRITEBYTECODE=1
 export PYTHONHASHSEED=22
 
@@ -42,14 +43,14 @@ popd
 
 
 # Install frozen dependencies
-$PYTHON -m pip install -r "$CONTRIB"/deterministic-build/requirements.txt
+$PYTHON -m pip install --no-warn-script-location -r "$CONTRIB"/deterministic-build/requirements.txt
 
-$PYTHON -m pip install -r "$CONTRIB"/deterministic-build/requirements-hw.txt
+$PYTHON -m pip install --no-warn-script-location -r "$CONTRIB"/deterministic-build/requirements-hw.txt
 
 pushd $WINEPREFIX/drive_c/electrum
 # see https://github.com/pypa/pip/issues/2195 -- pip makes a copy of the entire directory
 info "Pip installing Electrum. This might take a long time if the project folder is large."
-$PYTHON -m pip install .
+$PYTHON -m pip install --no-warn-script-location .
 popd
 
 
diff --git a/contrib/build-wine/prepare-wine.sh b/contrib/build-wine/prepare-wine.sh
index 4bc147841..e4b8c873b 100755
--- a/contrib/build-wine/prepare-wine.sh
+++ b/contrib/build-wine/prepare-wine.sh
@@ -21,7 +21,7 @@ PYTHON_VERSION=3.6.8
 
 ## These settings probably don't need change
 export WINEPREFIX=/opt/wine64
-#export WINEARCH='win32'
+export WINEDEBUG=-all
 
 PYTHON_FOLDER="python3"
 PYHOME="c:/$PYTHON_FOLDER"
@@ -58,7 +58,7 @@ done
 
 info "Installing dependencies specific to binaries."
 # note that this also installs pinned versions of both pip and setuptools
-$PYTHON -m pip install -r "$CONTRIB"/deterministic-build/requirements-binaries.txt
+$PYTHON -m pip install --no-warn-script-location -r "$CONTRIB"/deterministic-build/requirements-binaries.txt
 
 info "Installing ZBar."
 download_if_not_exist "$CACHEDIR/$ZBAR_FILENAME" "$ZBAR_URL"
@@ -107,6 +107,6 @@ info "Building PyInstaller."
     [[ -e PyInstaller/bootloader/Windows-32bit/runw.exe ]] || fail "Could not find runw.exe in target dir!"
 ) || fail "PyInstaller build failed"
 info "Installing PyInstaller."
-$PYTHON -m pip install ./pyinstaller
+$PYTHON -m pip install --no-warn-script-location ./pyinstaller
 
 info "Wine is configured."