diff --git a/src/amr/tagging/default_hybrid_tagger_strategy.hpp b/src/amr/tagging/default_hybrid_tagger_strategy.hpp
index 6ab30fb07..3a256bc2e 100644
--- a/src/amr/tagging/default_hybrid_tagger_strategy.hpp
+++ b/src/amr/tagging/default_hybrid_tagger_strategy.hpp
@@ -28,7 +28,7 @@ void DefaultHybridTaggerStrategy<HybridModel>::tag(HybridModel& model,
     auto& By = model.state.electromag.B.getComponent(PHARE::core::Component::Y);
     auto& Bz = model.state.electromag.B.getComponent(PHARE::core::Component::Z);
 
-    auto& N = model.state.ions.density();
+    auto& N = model.state.ions.chargeDensity();
 
     double threshold = 0.1;