diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InjectionModel/InjectionModel.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InjectionModel/InjectionModel.H
index ad42a27030e37baee82f64915a558b2ce0392753..05e009f4c6ad00fe5f0bdbe6b472ebcf388dde99 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InjectionModel/InjectionModel.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InjectionModel/InjectionModel.H
@@ -113,8 +113,8 @@ protected:
             //- Start of injection [s]
             const scalar SOI_;
 
-            //- Total volume of parcels to introduce [m^3]
-            //  Initialised in the individual injection models
+            //- Total volume of particles introduced by this injector [m^3]
+            //  - scaled to ensure massTotal is achieved
             scalar volumeTotal_;
 
             //- Total mass to inject [kg]