diff --git a/src/CLASS2/pair_lj_class2.cpp b/src/CLASS2/pair_lj_class2.cpp
index f86ba3b035..d6348bafa7 100644
--- a/src/CLASS2/pair_lj_class2.cpp
+++ b/src/CLASS2/pair_lj_class2.cpp
@@ -513,6 +513,7 @@ double PairLJClass2::init_one(int i, int j)
         pow(sigma[j][j], 3.0) / (pow(sigma[i][i], 6.0) + pow(sigma[j][j], 6.0));
     sigma[i][j] = pow((0.5 * (pow(sigma[i][i], 6.0) + pow(sigma[j][j], 6.0))), 1.0 / 6.0);
     cut[i][j] = mix_distance(cut[i][i], cut[j][j]);
+    did_mix = true;
   }
 
   lj1[i][j] = 18.0 * epsilon[i][j] * pow(sigma[i][j], 9.0);
diff --git a/src/CLASS2/pair_lj_class2_coul_cut.cpp b/src/CLASS2/pair_lj_class2_coul_cut.cpp
index c78d9a99e3..6b5ffe9e65 100644
--- a/src/CLASS2/pair_lj_class2_coul_cut.cpp
+++ b/src/CLASS2/pair_lj_class2_coul_cut.cpp
@@ -277,6 +277,7 @@ double PairLJClass2CoulCut::init_one(int i, int j)
     sigma[i][j] = pow((0.5 * (pow(sigma[i][i], 6.0) + pow(sigma[j][j], 6.0))), 1.0 / 6.0);
     cut_lj[i][j] = mix_distance(cut_lj[i][i], cut_lj[j][j]);
     cut_coul[i][j] = mix_distance(cut_coul[i][i], cut_coul[j][j]);
+    did_mix = true;
   }
 
   double cut = MAX(cut_lj[i][j], cut_coul[i][j]);
diff --git a/src/CLASS2/pair_lj_class2_coul_long.cpp b/src/CLASS2/pair_lj_class2_coul_long.cpp
index 03b1378920..839586abcf 100644
--- a/src/CLASS2/pair_lj_class2_coul_long.cpp
+++ b/src/CLASS2/pair_lj_class2_coul_long.cpp
@@ -711,6 +711,7 @@ double PairLJClass2CoulLong::init_one(int i, int j)
         pow(sigma[j][j], 3.0) / (pow(sigma[i][i], 6.0) + pow(sigma[j][j], 6.0));
     sigma[i][j] = pow((0.5 * (pow(sigma[i][i], 6.0) + pow(sigma[j][j], 6.0))), 1.0 / 6.0);
     cut_lj[i][j] = mix_distance(cut_lj[i][i], cut_lj[j][j]);
+    did_mix = true;
   }
 
   double cut = MAX(cut_lj[i][j], cut_coul);
diff --git a/src/pair.cpp b/src/pair.cpp
index 81f231bb31..c5aed7ee65 100644
--- a/src/pair.cpp
+++ b/src/pair.cpp
@@ -290,8 +290,13 @@ void Pair::init()
 
   if (!manybody_flag && (comm->me == 0)) {
     const int num_mixed_pairs = atom->ntypes * (atom->ntypes - 1) / 2;
-    utils::logmesg(lmp,"Generated {} of {} mixed pair_coeff terms from {} mixing rule\n",
-                   mixed_count, num_mixed_pairs, mixing_rule_names[mix_flag]);
+    // CLASS2 always applies sixthpower mixing to epsilon/sigma
+    if (utils::strmatch(force->pair_style,"^lj/class2"))
+      utils::logmesg(lmp,"Generated {} of {} mixed pair_coeff terms from {}/{} mixing rule\n",
+                     mixed_count, num_mixed_pairs, "sixthpower", mixing_rule_names[mix_flag]);
+    else
+      utils::logmesg(lmp,"Generated {} of {} mixed pair_coeff terms from {} mixing rule\n",
+                     mixed_count, num_mixed_pairs, mixing_rule_names[mix_flag]);
   }
 }