diff --git a/PKGBUILD b/PKGBUILD
index 5d5478b..e9d4934 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -101,6 +101,7 @@ build() {
       -DCMAKE_MAKE_PROGRAM=/usr/bin/ninja \
       -DCMAKE_BUILD_TYPE=Release \
       -DCMAKE_INSTALL_PREFIX=/usr \
+      -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
       -DGVARS=YES \
       -DHELI=YES \
       -DLUA=YES \