diff --git a/src/Makefile b/src/Makefile
index 8056f910..d61f8010 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -14,7 +14,7 @@
 
 release_hdr := $(shell sh -c './mkreleasehdr.sh')
 uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
-#OPTIMIZATION?=-O2
+OPTIMIZATION?=-O2
 DEPENDENCY_TARGETS=hiredis linenoise lua geohash-int
 
 # Default settings