diff --git a/src/min.cpp b/src/min.cpp
index bf36e0539a..3105a355be 100644
--- a/src/min.cpp
+++ b/src/min.cpp
@@ -671,7 +671,7 @@ void Min::modify_params(int narg, char **arg)
       iarg += 2;
     } else if (strcmp(arg[iarg],"delaystep") == 0) {
       if (iarg+2 > narg) error->all(FLERR,"Illegal min_modify command");
-      delaystep = utils::numeric(FLERR,arg[iarg+1],false,lmp);
+      delaystep = utils::inumeric(FLERR,arg[iarg+1],false,lmp);
       iarg += 2;
     } else if (strcmp(arg[iarg],"dtgrow") == 0) {
       if (iarg+2 > narg) error->all(FLERR,"Illegal min_modify command");
@@ -707,7 +707,7 @@ void Min::modify_params(int narg, char **arg)
       iarg += 2;
     } else if (strcmp(arg[iarg],"vdfmax") == 0) {
       if (iarg+2 > narg) error->all(FLERR,"Illegal min_modify command");
-      max_vdotf_negatif = utils::numeric(FLERR,arg[iarg+1],false,lmp);
+      max_vdotf_negatif = utils::inumeric(FLERR,arg[iarg+1],false,lmp);
       iarg += 2;
     } else if (strcmp(arg[iarg],"integrator") == 0) {
       if (iarg+2 > narg) error->all(FLERR,"Illegal min_modify command");