diff --git a/indra/newview/llvoavatar.h b/indra/newview/llvoavatar.h
index d8f90a1bc..f8451604b 100644
--- a/indra/newview/llvoavatar.h
+++ b/indra/newview/llvoavatar.h
@@ -1100,7 +1100,7 @@ protected: // Shared with LLVOAvatarSelf
 public:
 	typedef std::array<F32, LL_MAX_JOINTS_PER_MESH_OBJECT * 12> rigged_matrix_array_t;
 	typedef std::vector<std::pair<LLUUID, std::pair<U32, rigged_matrix_array_t> > > rigged_transformation_cache_t;
-	auto& getRiggedMatrixCache()
+	rigged_transformation_cache_t& getRiggedMatrixCache()
 	{
 		return mRiggedMatrixDataCache;
 	}