diff --git a/src/cooling/const_lambda/cooling.h b/src/cooling/const_lambda/cooling.h
index 0a5672a63ea1e6fe92da216349af25c50115dc2e..a55fd86ff489fedeb9d2bcb703f62b849ffeeb00 100644
--- a/src/cooling/const_lambda/cooling.h
+++ b/src/cooling/const_lambda/cooling.h
@@ -35,24 +35,6 @@
 #include "physical_constants.h"
 #include "units.h"
 
-/* Cooling Properties */
-struct cooling_data {
-
-  /*! Cooling rate in cgs units. Defined by 'rho * du/dt = -lambda * n_H^2'*/
-  double lambda;
-
-  /*! Fraction of gas mass that is Hydrogen. Used to calculate n_H*/
-  float hydrogen_mass_abundance;
-
-  /* 'mu', used to convert min_temperature to min_internal energy*/
-  float mean_molecular_weight;
-
-  /*! Minimally allowed internal energy of the particles */
-  float min_energy;
-
-  /*! Constant multiplication factor for time-step criterion */
-  float cooling_tstep_mult;
-};
 
 /**
  * @brief Calculates du/dt in code units for a particle.
diff --git a/src/cooling/const_lambda/cooling_struct.h b/src/cooling/const_lambda/cooling_struct.h
index 27c5df16bffbe7d165237d201ca68ea4ba89dd73..6226ca3179175f15599f88d1c1264496b390a31e 100644
--- a/src/cooling/const_lambda/cooling_struct.h
+++ b/src/cooling/const_lambda/cooling_struct.h
@@ -29,20 +29,16 @@
 struct cooling_function_data {
 
   /*! Cooling rate in cgs units. Defined by 'rho * du/dt = -lambda * n_H^2'*/
-  float lambda;
+  double lambda;
 
-  /*! Minimum temperature (in Kelvin) for all gas particles*/
-  float min_temperature;
-
-  /*! Fraction of gas mass that is Hydrogen. Used to calculate n_H*/
+  /*! Fraction of gas mass that is Hydrogen. Used to calculate n_H */
   float hydrogen_mass_abundance;
 
-  /* 'mu', used to convert min_temperature to min_internal energy*/
+  /*! 'mu', used to convert min_temperature to min_internal energy */
   float mean_molecular_weight;
 
-  /*! Minimally allowed internal energy of the particles */
+  /*! Minimally allowed internal energy of all the particles */
   float min_energy;
-  float min_energy_cgs;
 
   /*! Constant multiplication factor for time-step criterion */
   float cooling_tstep_mult;