diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 3.2.18.1
+
+* Fix benchmark compilation [#681](https://github.com/yesodweb/wai/issues/681)
+
 ## 3.2.18
 
 * Make `testWithApplicationSettings` actually use the settings passed.
diff --git a/bench/Parser.hs b/bench/Parser.hs
--- a/bench/Parser.hs
+++ b/bench/Parser.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE BangPatterns #-}
 
@@ -18,7 +19,11 @@
 import Foreign.Ptr
 import Foreign.Storable
 
+#if MIN_VERSION_gauge(0, 2, 0)
 import Gauge
+#else
+import Gauge.Main
+#endif
 
 -- $setup
 -- >>> :set -XOverloadedStrings
diff --git a/warp.cabal b/warp.cabal
--- a/warp.cabal
+++ b/warp.cabal
@@ -1,5 +1,5 @@
 Name:                warp
-Version:             3.2.18
+Version:             3.2.18.1
 Synopsis:            A fast, light-weight web server for WAI applications.
 License:             MIT
 License-file:        LICENSE