diff --git a/src/OpenGl/OpenGl_AspectMarker.cxx b/src/OpenGl/OpenGl_AspectMarker.cxx
index 3d96ccea1e..d12df9a0cb 100644
--- a/src/OpenGl/OpenGl_AspectMarker.cxx
+++ b/src/OpenGl/OpenGl_AspectMarker.cxx
@@ -1644,7 +1644,7 @@ void OpenGl_AspectMarker::Resources::BuildSprites (const Handle(OpenGl_Context)&
       }
       else
       {
-        const TCollection_AsciiString anOldKey = mySprite->First()->ResourceId();
+        const TCollection_AsciiString anOldKey = mySpriteA->First()->ResourceId();
         mySpriteA.Nullify(); // we need nullify all handles before ReleaseResource() call
         theCtx->ReleaseResource (anOldKey, Standard_True);
       }