1 files changed, 2 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index bb11f1f..187d516 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,8 @@ WARNINGS = -Wpointer-arith -Wcast-align -Wformat=2 \
 	   -Wsuggest-attribute=format -Wall \
 	   -Wextra -Wpedantic -Winit-self -Wshadow -Wcast-qual \
 	   -Wstrict-prototypes -Wmissing-prototypes
-CFLAGS = -std=c11 $(WARNINGS) -O2 -flto -MMD -MP -ffreestanding -nostdlib -Ilib
+CPPFLAGS = -Ilib
+CFLAGS = -std=c11 $(WARNINGS) -O2 -flto -MMD -MP -ffreestanding -nostdlib
 LDFLAGS = -T layout.ld -O2 -flto -ffreestanding -nostdlib
 ASFLAGS = $(TARGET_ARCH)