diff --git a/profiles/pentoo/zero-system/make.defaults b/profiles/pentoo/zero-system/make.defaults
index ac8ea2942..8620bc840 100644
--- a/profiles/pentoo/zero-system/make.defaults
+++ b/profiles/pentoo/zero-system/make.defaults
@@ -12,7 +12,7 @@ FEATURES="sign"
 ECHANGELOG_USER="Rick Farina <zerochaos@gentoo.org>"
 DCO_SIGNED_OFF_BY="Rick Farina <zerochaos@gentoo.org>"
 
-CFLAGS="${CFLAGS} -flto -Werror=strict-aliasing -Werror=odr -Werror=lto-type-mismatch -Wstringop-overread -Werror=stringop-overread"
+CFLAGS="${CFLAGS} -flto=auto -Werror=strict-aliasing -Werror=odr -Werror=lto-type-mismatch -Wstringop-overread -Werror=stringop-overread"
 #CFLAGS="${CFLAGS} -Werror=format-security"
 CXXFLAGS="${CFLAGS}"
 FCFLAGS="${CFLAGS}"