diff --git a/make.conf/00common b/make.conf/00common
index d0353b1..b7a6cfe 100644
--- a/make.conf/00common
+++ b/make.conf/00common
@@ -25,7 +25,7 @@ ADDR2LINE="llvm-addr2line"
 
 LD="ld.mold"
 
-LDFLAGS="${LDFLAGS} -fuse-ld=mold"
+LDFLAGS="${LDFLAGS} -fuse-ld=mold -flto"
 
 LDFLAGS="${LDFLAGS} -rtlib=compiler-rt -unwindlib=libunwind"