diff --git a/plotter.py b/plotter.py
index 8fcd668..09ee976 100644
--- a/plotter.py
+++ b/plotter.py
@@ -1765,7 +1765,7 @@ class Plotter(Aggregator, BaseProcessor):
                 averageables.append(name + "_avg")
 
             # special for vectors
-            if field in ["g", "vel"]:
+            if field in ["g", "vel", "Bl", "Br"]:
                 # Components
                 for i, dir in enumerate(["x", "y", "z"]):
                     generic_rule(field + dir)