diff --git a/makefile b/makefile
index 622484c..40a6b93 100644
--- a/makefile
+++ b/makefile
@@ -201,7 +201,7 @@ endif
 	$(AS) -c $(ASFLAGS) $< -o $@
 
 %elf: $(OBJS)
-	@mkdir -p $(@D)
+	@mkdir -p build
 	$(CC) $(OBJS) $(LDFLAGS) $(LIBS) -o build/$@
 
 %hex: %elf