diff --git a/Makefile b/Makefile
index 1d2a15d00b..b523ef3205 100644
--- a/Makefile
+++ b/Makefile
@@ -133,10 +133,10 @@ $(C_BUILDDIR)/m4a_4.o: CC1 := tools/agbcc/bin/old_agbcc
 
 $(C_BUILDDIR)/record_mixing.o: CFLAGS += -ffreestanding
 
-ifeq ($(NODEP),)
-$(C_BUILDDIR)/%.o: c_dep = $(shell $(SCANINC) -I include $(C_SUBDIR)/$*.c)
-else
+ifeq ($(NODEP),1)
 $(C_BUILDDIR)/%.o: c_dep :=
+else
+$(C_BUILDDIR)/%.o: c_dep = $(shell $(SCANINC) -I include $(C_SUBDIR)/$*.c)
 endif
 
 $(C_BUILDDIR)/%.o : $(C_SUBDIR)/%.c $$(c_dep)
@@ -145,19 +145,19 @@ $(C_BUILDDIR)/%.o : $(C_SUBDIR)/%.c $$(c_dep)
 	@echo -e ".text\n\t.align\t2, 0\n" >> $(C_BUILDDIR)/$*.s
 	$(AS) $(ASFLAGS) -o $@ $(C_BUILDDIR)/$*.s
 
-ifeq ($(NODEP),)
-$(ASM_BUILDDIR)/%.o: asm_dep = $(shell $(SCANINC) $(ASM_SUBDIR)/$*.s)
-else
+ifeq ($(NODEP),1)
 $(ASM_BUILDDIR)/%.o: asm_dep :=
+else
+$(ASM_BUILDDIR)/%.o: asm_dep = $(shell $(SCANINC) $(ASM_SUBDIR)/$*.s)
 endif
 
 $(ASM_BUILDDIR)/%.o: $(ASM_SUBDIR)/%.s $$(asm_dep)
 	$(AS) $(ASFLAGS) -o $@ $<
 
-ifeq ($(NODEP),)
-$(DATA_ASM_BUILDDIR)/%.o: data_dep = $(shell $(SCANINC) $(DATA_ASM_SUBDIR)/$*.s)
-else
+ifeq ($(NODEP),1)
 $(DATA_ASM_BUILDDIR)/%.o: data_dep :=
+else
+$(DATA_ASM_BUILDDIR)/%.o: data_dep = $(shell $(SCANINC) $(DATA_ASM_SUBDIR)/$*.s)
 endif
 
 $(DATA_ASM_BUILDDIR)/%.o: $(DATA_ASM_SUBDIR)/%.s $$(data_dep)