diff --git a/Makefile b/Makefile
index b8bceb42..b3be6b96 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ endif
 all: mg_prefix unamalgamated unpacked test test++ arm examples vc98 vc2017 mingw mingw++ linux linux++ fuzz
 
 examples:
-	@for X in $(EXAMPLES); do $(MAKE) -C $$X example || break; done
+	@for X in $(EXAMPLES); do test -f $$X/Makefile || continue; $(MAKE) -C $$X example || exit 1; done
 
 test/packed_fs.c: Makefile src/fs.h src/ssi.h test/fuzz.c test/data/a.txt
 	$(CC) $(CFLAGS) test/pack.c -o pack
diff --git a/examples/mqtt-server/main.c b/examples/mqtt-server/main.c
index bf1147d9..a9d12a09 100644
--- a/examples/mqtt-server/main.c
+++ b/examples/mqtt-server/main.c
@@ -78,7 +78,7 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
         for (struct sub *sub = s_subs; sub != NULL; sub = sub->next) {
           if (mg_globmatch(sub->topic.ptr, sub->topic.len, mm->topic.ptr,
                            mm->topic.len)) {
-            mg_mqtt_pub(sub->c, &mm->topic, &mm->data, 1, false);
+            mg_mqtt_pub(sub->c, mm->topic, mm->data, 1, false);
           }
         }
         break;