diff --git a/src/build_models/auxingrowthplugin.cpp b/src/build_models/auxingrowthplugin.cpp
--- a/src/build_models/auxingrowthplugin.cpp
+++ b/src/build_models/auxingrowthplugin.cpp
@@ -39,7 +39,6 @@ bool batch = false;
 // To be executed after cell division
 void AuxinGrowthPlugin::OnDivide(ParentInfo *parent_info, CellBase *daughter1, CellBase *daughter2)
 {
-  parent_info = NULL; // merely to obviate compile time error
 
   // Auxin distributes between parent and daughter according to area
   double area1 = daughter1->Area(), area2 = daughter2->Area();