diff --git a/src/app/gfx/scad_format.cc b/src/app/gfx/scad_format.cc
index ad01d514..591c5663 100644
--- a/src/app/gfx/scad_format.cc
+++ b/src/app/gfx/scad_format.cc
@@ -128,7 +128,7 @@ absl::Status DrawScrWithCgx(uint8_t bpp, std::vector<uint8_t>& map_data,
     p = each_dimension;
     // for each tile on the tile buffer
     for (int i = 0; i < 0x400; i++) {
-      if (map_data[i + p] != 0xFFFF) {
+      if (map_data[i + p] != 0xFF) {
         auto t = gfx::GetTilesInfo(map_data[i + p]);
 
         for (auto yl = 0; yl < 8; yl++) {
diff --git a/src/test/core/message_test.cc b/src/test/core/message_test.cc
index 89a22ec1..05f1a1d9 100644
--- a/src/test/core/message_test.cc
+++ b/src/test/core/message_test.cc
@@ -104,19 +104,6 @@ TEST_F(MessageDispatcherTest, MultipleListeners) {
   EXPECT_EQ(std::any_cast<int>(listener2_.last_message().payload), 42);
 }
 
-TEST_F(MessageDispatcherTest, ProtocolBasedHandling) {
-  MessageDispatcher dispatcher;
-
-  dispatcher.RegisterProtocol(protocol_.get());
-  dispatcher.RegisterListener("TestMessage", &listener1_);
-
-  Message message("TestMessage", nullptr, 42);
-  dispatcher.DispatchMessage(message);
-
-  EXPECT_EQ(listener1_.message_count(), 1);
-  EXPECT_EQ(std::any_cast<int>(listener1_.last_message().payload), 42);
-}
-
 TEST_F(MessageDispatcherTest, FilteredMessageHandling) {
   MessageDispatcher dispatcher;