diff --git a/src/KOKKOS/atom_kokkos.h b/src/KOKKOS/atom_kokkos.h
index 669c8b510a..8501af2a24 100644
--- a/src/KOKKOS/atom_kokkos.h
+++ b/src/KOKKOS/atom_kokkos.h
@@ -168,7 +168,7 @@ class AtomKokkos : public Atom {
   virtual void grow(unsigned int mask);
   int add_custom(const char *, int, int, int border = 0) override;
   void remove_custom(int, int, int) override;
-  virtual void deallocate_topology();
+  void deallocate_topology() override;
 
   void map_set_device();
   void map_set_host();
diff --git a/src/atom.h b/src/atom.h
index 86ec697dce..195c1b2cf9 100644
--- a/src/atom.h
+++ b/src/atom.h
@@ -327,7 +327,7 @@ class Atom : protected Pointers {
 
   int parse_data(const char *);
 
-  void deallocate_topology();
+  virtual void deallocate_topology();
 
   void data_atoms(int, char *, tagint, tagint, int, int, double *, int, int *, int);
   void data_vels(int, char *, tagint);