diff --git a/dpgen/auto_test/template/elastic/lmp/potential.mod b/dpgen/auto_test/template/elastic/lmp/potential.mod
index a401edca0..3ad5b0e1f 100644
--- a/dpgen/auto_test/template/elastic/lmp/potential.mod
+++ b/dpgen/auto_test/template/elastic/lmp/potential.mod
@@ -4,7 +4,7 @@
 # ================= Choose potential ========================
 pair_style	deepmd graph.000.pb graph.001.pb graph.002.pb graph.003.pb  400 model_devi.out
 #pair_style	deepmd frozen_model.pb
-pair_coeff     
+pair_coeff     * *
 
 # Setup neighbor style
 neigh_modify	every 1 delay 0 check yes
diff --git a/examples/run/dp-lammps-enhance_sampling/lmp/input.lammps b/examples/run/dp-lammps-enhance_sampling/lmp/input.lammps
index 05af2c07e..e498fa0f9 100644
--- a/examples/run/dp-lammps-enhance_sampling/lmp/input.lammps
+++ b/examples/run/dp-lammps-enhance_sampling/lmp/input.lammps
@@ -20,7 +20,7 @@ mass           2  1.008
 
 #Interatomic potentials - DeepMD
 pair_style     deepmd 
-pair_coeff
+pair_coeff     * *
 
 
 #MD parameters