diff --git a/Makefile b/Makefile
index 69d2706..617acbf 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ HIREDIS_OBJ=hiredis/hiredis.o hiredis/sds.o hiredis/net.o hiredis/async.o hiredi
 JANSSON_OBJ=jansson/src/dump.o jansson/src/error.o jansson/src/hashtable.o jansson/src/load.o jansson/src/strbuffer.o jansson/src/utf.o jansson/src/value.o jansson/src/variadic.o 
 FORMAT_OBJS=formats/json.o formats/raw.o formats/common.o formats/custom-type.o
 OBJS=webdis.o conf.o $(FORMAT_OBJS) cmd.o server.o $(HIREDIS_OBJ) $(JANSSON_OBJ) libb64/cencode.o acl.o
-CFLAGS=-O0 -ggdb -Wall -Wextra -I. -Ijansson/src
+CFLAGS=-O3 -Wall -Wextra -I. -Ijansson/src
 LDFLAGS=-levent
 
 all: $(OUT) Makefile
diff --git a/formats/custom-type.c b/formats/custom-type.c
index b78e167..b1b56f5 100644
--- a/formats/custom-type.c
+++ b/formats/custom-type.c
@@ -50,8 +50,6 @@ custom_type_reply(redisAsyncContext *c, void *r, void *privdata) {
 
 	/* send reply */
 	format_send_reply(cmd, reply->element[0]->str, reply->element[0]->len, ct);
-
-	cmd_free(cmd);
 	return;
 
 fail: