diff --git a/winbuild/build_prepare.py b/winbuild/build_prepare.py
index 93383cd78..1d50aee1d 100644
--- a/winbuild/build_prepare.py
+++ b/winbuild/build_prepare.py
@@ -399,6 +399,7 @@ DEPS: dict[str, dict[str, Any]] = {
                 "-DAVIF_CODEC_AOM_DECODE=OFF",
                 "-DAVIF_CODEC_DAV1D=LOCAL",
                 "-DCMAKE_POLICY_VERSION_MINIMUM=3.5",
+                "-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON",
                 build_type="MinSizeRel",
             ),
             cmd_xcopy("include", "{inc_dir}"),