diff --git a/Makefile b/Makefile
index 02c67b5..87fb147 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@
 # to match your GBDK root directory (ex: GBDK_HOME = "C:/GBDK/"
 GBDK_HOME = gbdk
 
-LCC = $(GBDK_HOME)bin/lcc 
+LCC = $(GBDK_HOME)/bin/lcc 
 
 # You can set flags for LCC here
 # For example, you can uncomment the line below to turn on debug output
diff --git a/README.md b/README.md
index f7a60fa..9129688 100644
--- a/README.md
+++ b/README.md
@@ -8,3 +8,15 @@ Project directories
 - src: Main program source files (.c, .h, .s) can go here
 - res: Program graphics and audio source files (.c, .h, .s) can go here
 - obj: Compiled ROM (.gb) and debug files go in this directory
+
+
+## macOS security warnings
+If you get a security warning on macOS that says ("`... developer cannot be verified, macOS cannot verify that this app is free from malware`"), it does not mean that GBDK is malware. It just means the GBDK toolchain binaries are not signed by Apple, so it won't run them without an additional step.
+
+You will need to unquarrantine the files in the bin folder in order to run them. This can be fixed using the following steps.
+
+Open a terminal and navigate to the gbdk bin folder ("bin/" under your GBDK-2020 install folder). Then type:
+
+```
+xattr -d com.apple.quarantine *
+```
\ No newline at end of file
diff --git a/res/collision-test/tilemap.c b/res/test-tilemap.c
similarity index 100%
rename from res/collision-test/tilemap.c
rename to res/test-tilemap.c
diff --git a/res/collision-test/tilemap.h b/res/test-tilemap.h
similarity index 100%
rename from res/collision-test/tilemap.h
rename to res/test-tilemap.h
diff --git a/res/collision-test/tileset.c b/res/test-tileset.c
similarity index 100%
rename from res/collision-test/tileset.c
rename to res/test-tileset.c
diff --git a/res/collision-test/tileset.h b/res/test-tileset.h
similarity index 100%
rename from res/collision-test/tileset.h
rename to res/test-tileset.h
diff --git a/src/collision.c b/src/collision.c
index 88be968..2fc5d24 100644
--- a/src/collision.c
+++ b/src/collision.c
@@ -3,8 +3,8 @@
 
 #include "../res/underwater_tiles.h"
 #include "../res/underwater_map.h"
-#include "../res/collision-test/tileset.h"
-#include "../res/collision-test/tilemap.h"
+#include "../res/test-tileset.h"
+#include "../res/test-tilemap.h"
 
 #define SOLID 1
 #define PLAYER_HALF_WIDTH 8
diff --git a/src/main.c b/src/main.c
index 8f46044..824c2c1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -7,8 +7,8 @@
 #include "../res/underwater_tiles.h"
 #include "../res/underwater_map.h"
 #include "../res/submarine_sprites.h"
-#include "../res/collision-test/tileset.h"
-#include "../res/collision-test/tilemap.h"
+#include "../res/test-tileset.h"
+#include "../res/test-tilemap.h"
 
 #include "actor.h"
 // #include "input.h"