diff --git a/Makefile b/Makefile
index 588e095d..909223ad 100644
--- a/Makefile
+++ b/Makefile
@@ -475,6 +475,7 @@ benchmarks-diff: $(BENCH_CSV)
 # rules
 -include $(DEP)
 -include $(TEST_DEP)
+-include $(BENCH_DEP)
 .SUFFIXES:
 .SECONDARY: