diff --git a/src/INTEL/fix_nvt_sllod_intel.cpp b/src/INTEL/fix_nvt_sllod_intel.cpp
index eb11c8a7bb..aa85d74310 100644
--- a/src/INTEL/fix_nvt_sllod_intel.cpp
+++ b/src/INTEL/fix_nvt_sllod_intel.cpp
@@ -51,6 +51,7 @@ FixNVTSllodIntel::FixNVTSllodIntel(LAMMPS *lmp, int narg, char **arg) :
   modify->add_compute(fmt::format("{} {} temp/deform",
                                   id_temp,group->names[igroup]));
   tcomputeflag = 1;
+  nondeformbias = 0;
 }
 
 /* ---------------------------------------------------------------------- */
diff --git a/src/KOKKOS/fix_nvt_sllod_kokkos.cpp b/src/KOKKOS/fix_nvt_sllod_kokkos.cpp
index 5ba0e6b666..8f3d830507 100644
--- a/src/KOKKOS/fix_nvt_sllod_kokkos.cpp
+++ b/src/KOKKOS/fix_nvt_sllod_kokkos.cpp
@@ -56,6 +56,7 @@ FixNVTSllodKokkos<DeviceType>::FixNVTSllodKokkos(LAMMPS *lmp, int narg, char **a
   this->id_temp = utils::strdup(std::string(this->id)+"_temp");
   this->modify->add_compute(fmt::format("{} all temp/deform/kk",this->id_temp));
   this->tcomputeflag = 1;
+  this->nondeformbias = 0;
 }
 
 /* ---------------------------------------------------------------------- */