diff --git a/adsbus/Makefile b/adsbus/Makefile
index 3c1dba0..a5ab14c 100644
--- a/adsbus/Makefile
+++ b/adsbus/Makefile
@@ -1,5 +1,5 @@
 CC ?= clang
-CFLAGS ?= -Wall -Werror -O4 -g --std=gnu11 --pedantic-errors -fPIE -pie -fstack-protector-strong -pthread
+CFLAGS ?= -Wall -Werror -Wshadow -O4 -g --std=gnu11 --pedantic-errors -fPIE -pie -fstack-protector-strong -pthread
 LDFLAGS ?= $(CFLAGS) -Wl,-z,relro -Wl,-z,now
 LIBS ?= -ljansson -lprotobuf-c
 
diff --git a/adsbus/send.c b/adsbus/send.c
index c14f232..999dc8c 100644
--- a/adsbus/send.c
+++ b/adsbus/send.c
@@ -30,10 +30,10 @@ struct send {
 	struct send *next;
 };
 
-typedef void (*serializer)(struct packet *, struct buf *);
+typedef void (*serialize)(struct packet *, struct buf *);
 struct serializer {
 	char *name;
-	serializer serialize;
+	serialize serialize;
 	struct send *send_head;
 } serializers[] = {
 	{