diff --git a/apps/openmw_test_suite/nifloader/testbulletnifloader.cpp b/apps/openmw_test_suite/nifloader/testbulletnifloader.cpp
index 7598b63b0..b02b8b9ef 100644
--- a/apps/openmw_test_suite/nifloader/testbulletnifloader.cpp
+++ b/apps/openmw_test_suite/nifloader/testbulletnifloader.cpp
@@ -208,7 +208,7 @@ namespace
 
     void init(Nif::Extra& value)
     {
-        value.extra = Nif::ExtraPtr(nullptr);
+        value.next = Nif::ExtraPtr(nullptr);
     }
 
     void init(Nif::Named& value)
@@ -879,7 +879,7 @@ namespace
 
     TEST_F(TestBulletNifLoader, for_tri_shape_child_node_with_not_first_extra_data_string_starting_with_nc_should_return_shape_with_null_collision_shape)
     {
-        mNiStringExtraData.extra = Nif::ExtraPtr(&mNiStringExtraData2);
+        mNiStringExtraData.next = Nif::ExtraPtr(&mNiStringExtraData2);
         mNiStringExtraData2.string = "NC___";
         mNiStringExtraData2.recType = Nif::RC_NiStringExtraData;
         mNiTriShape.extra = Nif::ExtraPtr(&mNiStringExtraData);