diff --git a/.github/workflows/config.yml b/.github/workflows/config.yml
index fff5556..0915a56 100644
--- a/.github/workflows/config.yml
+++ b/.github/workflows/config.yml
@@ -27,6 +27,8 @@ jobs:
     - uses: actions/checkout@v1
     - name: "build linux"
       run: |
+        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 100 --slave /usr/bin/g++ g++ /usr/bin/g++-14 --slave /usr/bin/gcov gcov /usr/bin/gcov-14
+        sudo update-alternatives --set gcc /usr/bin/gcc-14
         sudo apt-get update
         sudo apt-get install -y libglfw3-dev libsdl2-dev gcc-multilib g++-multilib libfreetype6-dev libvulkan-dev
         git submodule update --init --recursive
diff --git a/symmetri/gui/load_file.cpp b/symmetri/gui/load_file.cpp
index 77f3202..0ec8168 100644
--- a/symmetri/gui/load_file.cpp
+++ b/symmetri/gui/load_file.cpp
@@ -76,7 +76,8 @@ void loadPetriNet(const std::filesystem::path& file) {
 
     m.colors = symmetri::Token::getColors();
 
-    append(std::move(new_net.priority), m.net.priority);
+    m.net.priority.insert(m.net.priority.end(), new_net.priority.begin(),
+                          new_net.priority.end());
     append(std::move(new_net.transition), m.net.transition);
     append(std::move(new_net.place), m.net.place);
     append(std::move(new_net.output_n), m.net.output_n);