diff --git a/src/atom.cpp b/src/atom.cpp
index 3f2f4550e9..f30ace174e 100644
--- a/src/atom.cpp
+++ b/src/atom.cpp
@@ -823,9 +823,9 @@ void Atom::modify_params(int narg, char **arg)
       if (iarg+2 > narg) utils::missing_cmd_args(FLERR, "atom_modify map", error);
       if (domain->box_exist)
         error->all(FLERR,"Atom_modify map command after simulation box is defined");
-      if (strcmp(arg[iarg+1],"array") == 0) map_user = 1;
-      else if (strcmp(arg[iarg+1],"hash") == 0) map_user = 2;
-      else if (strcmp(arg[iarg+1],"yes") == 0) map_user = 3;
+      if (strcmp(arg[iarg+1],"array") == 0) map_user = MAP_ARRAY;
+      else if (strcmp(arg[iarg+1],"hash") == 0) map_user = MAP_HASH;
+      else if (strcmp(arg[iarg+1],"yes") == 0) map_user = MAP_YES;
       else error->all(FLERR,"Illegal atom_modify map command argument {}", arg[iarg+1]);
       map_style = map_user;
       iarg += 2;