diff --git a/contrib/build-wine/build-electrum-git.sh b/contrib/build-wine/build-electrum-git.sh
index 70dff7381..10c1ac1c6 100755
--- a/contrib/build-wine/build-electrum-git.sh
+++ b/contrib/build-wine/build-electrum-git.sh
@@ -62,7 +62,7 @@ rm -rf dist/
 
 # build standalone and portable versions
 info "Running pyinstaller..."
-ELECTRUM_CMDLINE_NAME="$NAME_ROOT-$VERSION" wine "$WINE_PYHOME/scripts/pyinstaller.exe" --noconfirm --clean deterministic.spec
+ELECTRUM_CMDLINE_NAME="$NAME_ROOT-$VERSION" wine "$WINE_PYHOME/scripts/pyinstaller.exe" --noconfirm --clean pyinstaller.spec
 
 # set timestamps in dist, in order to make the installer reproducible
 pushd dist
diff --git a/contrib/build-wine/deterministic.spec b/contrib/build-wine/pyinstaller.spec
similarity index 100%
rename from contrib/build-wine/deterministic.spec
rename to contrib/build-wine/pyinstaller.spec
diff --git a/contrib/osx/make_osx.sh b/contrib/osx/make_osx.sh
index 2fa3557bc..b6cf47625 100755
--- a/contrib/osx/make_osx.sh
+++ b/contrib/osx/make_osx.sh
@@ -211,7 +211,7 @@ find . -exec touch -t '200101220000' {} + || true
 VERSION=$(git describe --tags --dirty --always)
 
 info "Building binary"
-ELECTRUM_VERSION=$VERSION pyinstaller --noconfirm --clean contrib/osx/osx.spec || fail "Could not build binary"
+ELECTRUM_VERSION=$VERSION pyinstaller --noconfirm --clean contrib/osx/pyinstaller.spec || fail "Could not build binary"
 
 info "Finished building unsigned dist/${PACKAGE}.app. This hash should be reproducible:"
 find "dist/${PACKAGE}.app" -type f -print0 | sort -z | xargs -0 shasum -a 256 | shasum -a 256
diff --git a/contrib/osx/osx.spec b/contrib/osx/pyinstaller.spec
similarity index 100%
rename from contrib/osx/osx.spec
rename to contrib/osx/pyinstaller.spec