diff --git a/slf4j-api/src/test/java/org/slf4j/testHarness/MultithreadedInitializationTest.java b/slf4j-api/src/test/java/org/slf4j/testHarness/MultithreadedInitializationTest.java
index a8b9b119b..c534bad1a 100644
--- a/slf4j-api/src/test/java/org/slf4j/testHarness/MultithreadedInitializationTest.java
+++ b/slf4j-api/src/test/java/org/slf4j/testHarness/MultithreadedInitializationTest.java
@@ -36,7 +36,7 @@ public void multiThreadedInitialization() throws InterruptedException, BrokenBar
 
         assertAllSubstLoggersAreFixed();
         long recordedEventCount = getRecordedEventCount();
-        int LENIENCY_COUNT = 21;
+        int LENIENCY_COUNT = 30;
 
         long expectedEventCount = eventCount.get() + extraLogEvents();