diff --git a/unypkg-base-build-stage2.sh b/unypkg-base-build-stage2.sh
index 951d31f..4aaa773 100644
--- a/unypkg-base-build-stage2.sh
+++ b/unypkg-base-build-stage2.sh
@@ -1109,7 +1109,7 @@ cd build || exit
     --with-system-zlib \
     --with-linker-hash-style=gnu
 
-make CFLAGS="-O3" CXXFLAGS="${CFLAGS}" -j"$(nproc)"
+make CFLAGS="-O2" CXXFLAGS="${CFLAGS}" -j"$(nproc)"
 
 ulimit -s 32768