diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for wai-extra
 
+## 3.1.12.1
+
+* Include test/{json.gz,noprecompress} as extra-source-files [#887](https://github.com/yesodweb/wai/pull/887)
+
 ## 3.1.12
 
 * Added gzip caching based on `ETag` [#885](https://github.com/yesodweb/wai/pull/885):
diff --git a/test/json.gz b/test/json.gz
new file mode 100644
--- /dev/null
+++ b/test/json.gz
@@ -0,0 +1,1 @@
+test
diff --git a/test/noprecompress b/test/noprecompress
new file mode 100644
--- /dev/null
+++ b/test/noprecompress
@@ -0,0 +1,1 @@
+noprecompress
diff --git a/wai-extra.cabal b/wai-extra.cabal
--- a/wai-extra.cabal
+++ b/wai-extra.cabal
@@ -1,5 +1,5 @@
 Name:                wai-extra
-Version:             3.1.12
+Version:             3.1.12.1
 Synopsis:            Provides some basic WAI handlers and middleware.
 description:
   Provides basic WAI handler and middleware functionality:
@@ -84,6 +84,8 @@
 extra-source-files:
   test/requests/dalvik-request
   test/json
+  test/json.gz
+  test/noprecompress
   test/test.html
   test/sample.hs
   ChangeLog.md