diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 08fc1ddfe5800975623989cf82cd24ebea1d5058..1414ac7b9e1597fd6e63cc5857309086305a1368 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -1271,7 +1271,7 @@ LLPrivateMemoryPool::LLPrivateMemoryPool(U32 max_size, bool threaded) :
 {
 	if(threaded)
 	{
-		mMutexp = new LLMutex(NULL) ;
+		mMutexp = new LLMutex ;
 	}
 
 	for(S32 i = 0 ; i < SUPER_ALLOCATION ; i++)