diff --git a/resources/packaging/debian/minimal.patch b/resources/packaging/debian/minimal.patch
index 59deb279..7a24efdf 100644
--- a/resources/packaging/debian/minimal.patch
+++ b/resources/packaging/debian/minimal.patch
@@ -65,7 +65,7 @@
   libharfbuzz-dev,
 --- a/rules.in
 +++ b/rules.in
-@@ -42,10 +42,6 @@ ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
+@@ -42,12 +42,8 @@
  njobs=-j$(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
  endif
  
@@ -74,8 +74,11 @@
 -          /usr/share/javascript/jquery-flot/*min.js \
 -
  %:
- 	dh $@
+-	dh $@
++	dh $@ --parallel
  
+ $ungoog{build_output}/gn:
+ 	mkdir -p $ungoog{build_output} || true
 @@ -56,13 +52,6 @@ $ungoog{build_output}/gn:
  override_dh_auto_configure:
  	# output compiler information
diff --git a/resources/packaging/debian/standard/rules.in b/resources/packaging/debian/standard/rules.in
index 02ef3cc1..a367a442 100755
--- a/resources/packaging/debian/standard/rules.in
+++ b/resources/packaging/debian/standard/rules.in
@@ -51,7 +51,7 @@ flotpaths=/usr/share/javascript/jquery/*min.js \
 
 $ungoog{build_output}/gn:
 	mkdir -p $ungoog{build_output} || true
-	./tools/gn/bootstrap/bootstrap.py -o $ungoog{build_output}/gn -s -j $(njobs)
+	./tools/gn/bootstrap/bootstrap.py -o $ungoog{build_output}/gn -s $(njobs)
 
 override_dh_auto_configure:
 	# output compiler information
diff --git a/utilikit/substitute_domains.py b/utilikit/substitute_domains.py
index 0fc5fdba..c924fd58 100755
--- a/utilikit/substitute_domains.py
+++ b/utilikit/substitute_domains.py
@@ -72,7 +72,7 @@ def substitute_domains_in_patches(regex_list, file_list, patch_list, root_dir, l
     file_set = set(file_list)
 
     for patch_path_str in patch_list:
-        with (root_dir / patch_path_str).open('r+') as file_obj:
+        with (root_dir / patch_path_str).open('r+', encoding='UTF-8') as file_obj:
             try:
                 patchset = unidiff.PatchSet(file_obj.read())
             except Exception as e: