diff --git a/.gitignore b/.gitignore
index 61f6368094..81e1b818af 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,4 @@ settings.mk
 /sprite
 
 tools/Yay0compress
+cpp.mk
diff --git a/Makefile b/Makefile
index 2c55403d01..f802cb7973 100644
--- a/Makefile
+++ b/Makefile
@@ -58,6 +58,8 @@ CPP := cpp
 LD := $(CROSS)ld
 OBJCOPY := $(CROSS)objcopy
 
+-include cpp.mk # Used to specify alternate CPP if `cpp` is the clang one on MacOS
+
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Linux)
 	OS=linux