diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3d07f911..d9a73535 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,6 +24,8 @@ jobs:
         ruby-version: ${{ matrix.ruby-version }}
     - name: Remove vscode gems
       run: bundle config set --local without vscode
+    - name: Install subversion
+      run: sudo apt update && sudo apt install subversion
     - name: Install dependencies
       run: bundle install
     - name: Enable file transport in git
diff --git a/lib/autobuild/packages/python.rb b/lib/autobuild/packages/python.rb
index 9230287f..c62fda63 100644
--- a/lib/autobuild/packages/python.rb
+++ b/lib/autobuild/packages/python.rb
@@ -88,7 +88,7 @@ def build
 
         # Install the result in prefix
         def install
-            return unless install_mode?
+            return super unless install_mode?
 
             command = generate_install_command
             command << '--force' if @forced