diff --git a/src/Makefile b/src/Makefile
index d76255fd4..927782e51 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -15,7 +15,7 @@
 release_hdr := $(shell sh -c './mkreleasehdr.sh')
 uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
 uname_M := $(shell sh -c 'uname -m 2>/dev/null || echo not')
-OPTIMIZATION?=-O2
+OPTIMIZATION?=-O2 -flto
 DEPENDENCY_TARGETS=hiredis linenoise lua rocksdb
 NODEPS:=clean distclean