diff --git a/src/coreclr/tests/src/tracing/eventlistener/EventListener.cs b/src/coreclr/tests/src/tracing/eventlistener/EventListener.cs
index 1483e5ca399955183238ede36ea4654c537f3bcb..6637e3fdb3ec72584c10338e463b48573f0bb313 100644
--- a/src/coreclr/tests/src/tracing/eventlistener/EventListener.cs
+++ b/src/coreclr/tests/src/tracing/eventlistener/EventListener.cs
@@ -71,7 +71,7 @@ static int Main(string[] args)
                 }
                 Console.WriteLine("\tEnd: Messaging.\n");
                 
-                Console.WriteLine($"\tEventListener recieved {listener.EventCount} event(s)\n");
+                Console.WriteLine($"\tEventListener received {listener.EventCount} event(s)\n");
                 pass = listener.EventCount == messageIterations;
             }
 
diff --git a/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/EventSource.cs b/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/EventSource.cs
index 8b92e332c54a2a24d0c9c97fb88c232d5d3c7ac6..de94f4f3c71117580febeaaae65877f6da7f4e4e 100644
--- a/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/EventSource.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/EventSource.cs
@@ -1363,7 +1363,10 @@ private unsafe void Initialize(Guid eventSourceGuid, string eventSourceName, str
 #if FEATURE_PERFTRACING
                 // Register the provider with EventPipe
                 var eventPipeProvider = new OverideEventProvider(this, EventProviderType.EventPipe);
-                eventPipeProvider.Register(this);
+                lock (EventListener.EventListenersLock)
+                {
+                    eventPipeProvider.Register(this);
+                }
 #endif
                 // Add the eventSource to the global (weak) list.  
                 // This also sets m_id, which is the index in the list.