diff --git a/cjson/Makefile b/cjson/Makefile
new file mode 100644
index 0000000..ff5f5ab
--- /dev/null
+++ b/cjson/Makefile
@@ -0,0 +1,12 @@
+CC ?= gcc
+CFLAGS ?= -Wall -O2 -lcjson
+
+TARGET = main.elf
+SRC = main.c
+
+$(TARGET): $(SRC)
+	@echo CC $@
+	@$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+clean:
+	rm -f $(TARGET)
diff --git a/cjson/cjson.c b/cjson/main.c
similarity index 70%
rename from cjson/cjson.c
rename to cjson/main.c
index cd5f205..30c5d87 100644
--- a/cjson/cjson.c
+++ b/cjson/main.c
@@ -6,9 +6,10 @@ char *build_set_level_command(int level) {
     cJSON_AddStringToObject(root, "cmd", "set_level");
     cJSON_AddNumberToObject(root, "level", level);
 
-    char *message = cJSON_PrintUnformatted(root);
+    // char *message = cJSON_PrintUnformatted(root);
+    char *msg2 = cJSON_Print(root);
     cJSON_Delete(root);
-    return message; // Remember to free this when done!
+    return msg2; // Remember to free this when done!
 }
 
 int main(void) {