diff --git a/flatpak/io.github.softfever.OrcaSlicer.yml b/flatpak/io.github.softfever.OrcaSlicer.yml
index 4395cc47ca..ae29d671de 100755
--- a/flatpak/io.github.softfever.OrcaSlicer.yml
+++ b/flatpak/io.github.softfever.OrcaSlicer.yml
@@ -298,7 +298,7 @@ modules:
       - |
         mkdir -p build
         CXXFLAGS=-std=gnu++20 cmake . -B build \
-          -DSLIC3R_PCH=ON \
+          -DSLIC3R_PCH=OFF \
           -DSLIC3R_FHS=ON \
           -DSLIC3R_GTK=3 \
           -DSLIC3R_STATIC=ON \
diff --git a/src/slic3r/GUI/2DBed.hpp b/src/slic3r/GUI/2DBed.hpp
index e6dd1add77..ba108ea449 100644
--- a/src/slic3r/GUI/2DBed.hpp
+++ b/src/slic3r/GUI/2DBed.hpp
@@ -3,6 +3,8 @@
 
 #include <wx/wx.h>
 #include "libslic3r/Config.hpp"
+#include "libslic3r/ExPolygon.hpp"
+#include "libslic3r/Polyline.hpp"
 
 namespace Slic3r {
 namespace GUI {