diff --git a/Makefile b/Makefile
index 08d01da..dc07e5f 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ $(OUTDIR)$(BIN): $(OBJS)
 	$(CXX) $(CXXFLAGS) -MMD -MP -MT $@ -MF $*.d -c $<
 	@mv $@ $*.d $(BUILDDIR)
 
--include $(BUILDDIR)$(DEPS)
+-include $(addprefic $(BUILDDIR), $(DEPS))
 
 test:
 	$(MAKE) -C tests && tests/tests