diff --git a/indra/llxuixml/llinitparam.h b/indra/llxuixml/llinitparam.h
index bdc6d146e61f3c28286de7017c68913b4e4306a8..a84e47f99817541d687586a5735402c7da84163a 100644
--- a/indra/llxuixml/llinitparam.h
+++ b/indra/llxuixml/llinitparam.h
@@ -372,7 +372,8 @@ namespace LLInitParam
 	public:
 		BlockDescriptor()
 		:	mMaxParamOffset(0),
-			mInitializationState(UNINITIALIZED)
+			mInitializationState(UNINITIALIZED),
+			mCurrentBlockPtr(NULL)
 		{}
 
 		typedef enum e_initialization_state