diff --git a/cab.cabal b/cab.cabal
--- a/cab.cabal
+++ b/cab.cabal
@@ -1,5 +1,5 @@
 Name:                   cab
-Version:                0.2.5
+Version:                0.2.6
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3
diff --git a/src/Commands.hs b/src/Commands.hs
--- a/src/Commands.hs
+++ b/src/Commands.hs
@@ -24,6 +24,7 @@
        , switches = [(SwNoharm, Solo "--dry-run -v")
                     ,(SwFlag, WithEqArg "--flags")
                     ,(SwTest, Solo "--enable-tests")
+                    ,(SwBench, Solo "--enable-benchmarks")
                     ,(SwDepsOnly, Solo "--only-dependencies")
                     ,(SwLibProfile, Solo "--enable-library-profiling --ghc-options=\"-fprof-auto -fprof-cafs\"")
                     ,(SwExecProfile, Solo "--enable-executable-profiling --ghc-options=\"-fprof-auto -fprof-cafs\"")