diff --git a/Makefile b/Makefile
index 1b06fb4..d9e1f64 100644
--- a/Makefile
+++ b/Makefile
@@ -5,8 +5,9 @@ nginx_dir=${DESTDIR}${confdir}/nginx
 bindir=${DESTDIR}${prefix}/bin
 
 DISABLE_CUSTOM_LINKS ?= 0
+MAX_SIZE	?= 52428800
 CC			?= gcc
-CFLAGS		:= -O2 -DDISABLE_CUSTOM_LINKS=${DISABLE_CUSTOM_LINKS} ${CFLAGS}
+CFLAGS		:= -O2 -DDISABLE_CUSTOM_LINKS=${DISABLE_CUSTOM_LINKS} -DMG_MAX_RECV_BUF_SIZE=${MAX_SIZE} ${CFLAGS}
 
 BIN			:= pacebin