diff --git a/Makefile b/Makefile
index 692f123..2f0059d 100644
--- a/Makefile
+++ b/Makefile
@@ -9,14 +9,14 @@ MACROS=\
 
 all: publisher subscriber logger
 
-publisher: src/publisher.c src/utils.c
-	$(CC) -lzmq $^ -o $@ $(MACROS)
+publisher: src/publisher.c src/utils.c config.mk
+	$(CC) -lzmq $(filter-out config.mk,$^) -o $@ $(MACROS)
 
-subscriber: src/subscriber.c src/utils.c
-	$(CC) -lzmq $^ -o $@ $(MACROS)
+subscriber: src/subscriber.c src/utils.c config.mk
+	$(CC) -lzmq $(filter-out config.mk,$^) -o $@ $(MACROS)
 
-logger: src/logger.c src/utils.c
-	$(CC) $^ -o $@ $(MACROS)
+logger: src/logger.c src/utils.c config.mk
+	$(CC) $(filter-out config.mk,$^) -o $@ $(MACROS)
 
 publish: publisher logger
 	[ -f pid ] && { kill $(shell cat pid); rm pid; }
diff --git a/config.mk b/config.mk
index 020550b..ea00093 100644
--- a/config.mk
+++ b/config.mk
@@ -3,7 +3,7 @@ ZMQ_PORT=5556
 SUBSCRIBER_ADDR=localhost
 # ZMQ_TOKEN is used by ZeroMQ to detect
 # messages from publishers. Leave as is if not sure.
-ZMQ_TOKEN="ina260-zmq-publisher"
+ZMQ_TOKEN=ina260-zmq-publisher
 # ZMQ_MSG_SIZE max number of bytes per ZeroMQ messages
 # be careful with this parameter
 ZMQ_MSG_SIZE=2550
diff --git a/src/publisher.c b/src/publisher.c
index 56fea78..bb02c68 100644
--- a/src/publisher.c
+++ b/src/publisher.c
@@ -17,7 +17,7 @@ void publish(void *publisher, char *filepath, char* client, long int interval);
 
 int main (int argc, char *argv [])
 {
-    printf("%d\n",ZMQ_MSG_SIZE);
+    printf("%s\n",ZMQ_TOKEN);
     if(argc != 6){
         printf("Usage: %s <abslogdir> <loginterval> <ip> <port> <key>",argv[0]);
         exit(1);