diff --git a/Makefile b/Makefile
index e57bf85..143dc1d 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
 # Directories containing independent Go modules.
 #
 # We track coverage only for the main module.
-MODULE_DIRS = . ./benchmarks
+MODULE_DIRS = .
 
 # Many Go tools take file globs or directories as arguments instead of packages.
 GO_FILES := $(shell \