diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 2d190fe6608f57fb61d3ee9b06832c0dd8bdf91a..4143f630c846a6a1df117caa921a6c3d23645522 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -1629,6 +1629,10 @@ void LLPrivateMemoryPool::addToHashTable(LLMemoryChunk* chunk)
 	{
 		mChunkHashList[start_key] = chunk ;
 	}
+	if(start_key == end_key)
+	{
+		return ; //done
+	}
 
 	if(!need_rehash)
 	{