diff --git a/examples/SmallCosmoVolume_cooling/small_cosmo_volume.yml b/examples/SmallCosmoVolume_cooling/small_cosmo_volume.yml
index 8ad9ae074f4d6c3f00ad95ec5dfb11255045d01a..969626d97bf98334dd87cb9dc6862b77795b1643 100644
--- a/examples/SmallCosmoVolume_cooling/small_cosmo_volume.yml
+++ b/examples/SmallCosmoVolume_cooling/small_cosmo_volume.yml
@@ -66,10 +66,9 @@ LambdaCooling:
 EagleCooling:
   filename:                ./coolingtables/
   reionisation_redshift:   8.5
-  he_reion:                1
-  he_reion_z_center:       3.5
-  he_reion_z_sigma:        0.5
-  he_reion_ev_pH:          2.0
+  He_reion_z_centre:       3.5
+  He_reion_z_sigma:        0.5
+  He_reion_ev_pH:          2.0
 
 # Impose primoridal metallicity
 EAGLEChemistry: