diff --git a/plotter.py b/plotter.py
index 862fd52..f06c024 100644
--- a/plotter.py
+++ b/plotter.py
@@ -975,7 +975,7 @@ class Plotter(Aggregator, BaseProcessor):
         self._overlay_vector("vel", ax_los, extent, **kwargs)
 
     def _overlay_B(self, ax_los, extent, **kwargs):
-        self._overlay_vector("B", ax_los, extent, **kwargs)
+        self._overlay_vector("Bl", ax_los, extent, **kwargs)
 
     def _plot_hist(
         self,