diff --git a/tests/Greylist.txt b/tests/Greylist.txt
index cade2cc428..53081952c5 100644
--- a/tests/Greylist.txt
+++ b/tests/Greylist.txt
@@ -3,7 +3,29 @@
 In this file we collect information about which tests are currently
 greylisted. Please add a reason and date, and possibly links to issues
 or PRs.
+======================================================================
 
+- `tests/js/server/recovery/write-throttling-mmfiles.js`
+
+* Test "recovery_2"
+    [FAILED]  tests/js/server/recovery/write-throttling-mmfiles.js
+
+      "testWriteThrottling" failed: at assertion #1: assertEqual: (10001) is not equal to (10000)
+(Error
+    at assertEqual (/Users/jenkins/hw22-mac/oskar/work/ArangoDB/js/common/modules/jsunity/jsunity.js:109:19)
+    at Object.testWriteThrottling (tests/js/server/recovery/write-throttling-mmfiles.js:78:7)
+    at Object.run (/Users/jenkins/hw22-mac/oskar/work/ArangoDB/js/common/modules/jsunity/jsunity.js:532:23)
+    at Object.Run [as run] (/Users/jenkins/hw22-mac/oskar/work/ArangoDB/js/common/modules/jsunity.js:195:24)
+    at Function.main (tests/js/server/recovery/write-throttling-mmfiles.js:102:13))
+
+      "totalSetUp" failed: undefined
+
+      "totalTearDown" failed: undefined
+
+   Suites failed: 1 Tests Failed: 3
+
+
+======================================================================
 
 - `tests/js/client/shell/shell-foxx-paths-spec.js`
 
@@ -19,6 +41,7 @@ Mount: /unittest/paths
 
    Suites failed: 1 Tests Failed: 1
 
+======================================================================
 
 - `tests/js/server/recovery/view-arangosearch-link-populate-no-flushthread.js`
 
@@ -29,6 +52,7 @@ Mount: /unittest/paths
 
    Suites failed: 1 Tests Failed: 1
 
+======================================================================
 
 - `tests/js/server/recovery/view-arangosearch-link-populate-transaction.js`
 
@@ -39,6 +63,7 @@ Mount: /unittest/paths
 
    Suites failed: 1 Tests Failed: 1
 
+======================================================================
 
 - `tests/js/client/resilience/foxxmaster.js` started to fail again
 
@@ -56,6 +81,7 @@ Mount: /unittest/paths
     at Function.forEach (/work/ArangoDB/js/node/node_modules/lodash/lodash.js:9344:14)
     at runJSUnityTests (/work/ArangoDB/js/common/modules/@arangodb/testrunner.js:38:5)
 
+======================================================================
 
 - `tests/js/server/recovery/view-arangosearch-link-populate-transaction-no-flushthread.js` started to fail again
 
@@ -63,6 +89,8 @@ Mount: /unittest/paths
 
       "test" failed: unable to run recovery test tests/js/server/recovery/view-arangosearch-link-populate-transaction-no-flushthread.js
 
+======================================================================
+
 - `tests/js/server/recovery/view-arangosearch-link-populate-no-callbacks.js` - fails
 
     2019-05-02T10:23:35Z [25095] S INFO [b1bb8] {engines} replaying WAL logfile '/work/tmp/arangosh_EgJGCj/crashtmp/28/datadb/journals/logfile-62.db' (1 of 1)
@@ -75,6 +103,8 @@ Mount: /unittest/paths
     2019-05-02T10:23:35Z [25095] S WARNING [b3dd6] {engines} WAL inspection failed when scanning logfile '/work/tmp/arangosh_EgJGCj/crashtmp/28/datadb/journals/logfile-62.db'
     2019-05-02T10:23:35Z [25095] S FATAL [c6422] {engines} unable to finish WAL recovery: logfile recovery error
 
+======================================================================
+
 - `tests/js/server/resilience/repair/repair-distribute-shards-like-spec.js`
 
     [FAILED]  tests/js/server/resilience/repair/repair-distribute-shards-like-spec.js
@@ -91,6 +121,7 @@ Mount: /unittest/paths
     at createBrokenClusterState (tests/js/server/resilience/repair/repair-distribute-shards-like-spec.js:221:52)
     at Context.<anonymous> (tests/js/server/resilience/repair/repair-distribute-shards-like-spec.js:761:11)
 
+======================================================================
 
 - `tests/js/server/resilience/failover/resilience-synchronous-repl-cluster.js`
 
@@ -107,7 +138,7 @@ Mount: /unittest/paths
     at RunTest (/work/ArangoDB/js/common/modules/jsunity.js:250:12)
     at source (eval at <anonymous> (unknown source), <anonymous>:4:52)
 
-
+======================================================================
 
 - `./tests/js/server/resilience/moving-shards-with-arangosearch-view-cluster.js` always fails (and needs refactoring) due to changes from PR 7748 with
 
diff --git a/tests/js/server/recovery/write-throttling-mmfiles.js b/tests/js/server/recovery/write-throttling-mmfiles-grey.js
similarity index 100%
rename from tests/js/server/recovery/write-throttling-mmfiles.js
rename to tests/js/server/recovery/write-throttling-mmfiles-grey.js