1 files changed, 4 insertions, 0 deletions
diff --git a/param.ccl b/param.ccl
index 25ea2a8..d750946 100644
--- a/param.ccl
+++ b/param.ccl
@@ -537,6 +537,10 @@ boolean track_divB "Track the magnetic field constraint violations"
 {
 } "no"
 
+boolean calculate_bcom  "Calculate the comoving contravariant magnetic 4-vector b^a?"
+{
+} "no"
+
 ############### Parameters for Tmunu damping (useful in atmosphere) #####################
 
 CCTK_REAL Tmunu_damping_radius_min "damping radius at which we start to damp with a tanh function"