1 files changed, 4 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 817247b..5da61f2 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,8 @@ LDFLAGS ?= -m elf_x86_64
 DAYS := $(basename $(notdir $(wildcard $(SRC_DIR)/day*.asm)))
 BINARIES := $(addprefix $(BUILD_DIR)/,$(DAYS))
 
+UTILS := $(wildcard $(SRC_DIR)/utils/*.asm)
+
 .PHONY: all clean list run
 
 all: $(BINARIES)
@@ -20,8 +22,8 @@ all: $(BINARIES)
 $(BUILD_DIR):
 	@mkdir -p $@
 
-$(BUILD_DIR)/%.o: $(SRC_DIR)/%.asm | $(BUILD_DIR)
-	@$(NASM) $(NASMFLAGS) $< -o $@
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.asm $(UTILS) | $(BUILD_DIR)
+	@$(NASM) $(NASMFLAGS) -I$(SRC_DIR)/ $< -o $@
 
 $(BUILD_DIR)/%: $(BUILD_DIR)/%.o
 	@$(LD) $(LDFLAGS) -o $@ $<