diff --git a/PKGBUILD b/PKGBUILD
index 53d8ab3..ebfc6d7 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -33,11 +33,12 @@ prepare() {
   # Fix xgettext: case-sensitive mismatches
   sed -i 's|src/slic3r/GUI/AMSMappingPopup.cpp|src/slic3r/GUI/AmsMappingPopup.cpp|g' $pkgname/localization/i18n/list.txt
   sed -i 's|https://www.mpfr.org/mpfr-current/mpfr-4.2.1.tar.bz2|https://www.mpfr.org/mpfr-4.2.1/mpfr-4.2.1.tar.bz2|' $pkgname/deps/MPFR/MPFR.cmake
+  # OSMesa got removed in mesa 25.1, replace it with gl
+  sed -i 's/OSMesa/OpenGL::GL/' $pkgname/src/slic3r/CMakeLists.txt
 }
 
 build() {
   cd $pkgname
-  export CXXFLAGS="${CXXFLAGS} -flto"
   export CMAKE_POLICY_VERSION_MINIMUM=3.5
   export CC=/usr/bin/gcc-14
   export CXX=/usr/bin/g++-14