diff --git a/src/MESONT/angle_mesocnt.h b/src/MESONT/angle_mesocnt.h
index 2388b06e32..06e15c730d 100644
--- a/src/MESONT/angle_mesocnt.h
+++ b/src/MESONT/angle_mesocnt.h
@@ -17,7 +17,9 @@
 ------------------------------------------------------------------------- */
 
 #ifdef ANGLE_CLASS
+// clang-format off
 AngleStyle(mesocnt, AngleMesoCNT);
+// clang-format on
 #else
 
 #ifndef LMP_ANGLE_MESOCNT_H
diff --git a/src/MESONT/bond_mesocnt.h b/src/MESONT/bond_mesocnt.h
index 69bb3aef0e..7a4ae81128 100644
--- a/src/MESONT/bond_mesocnt.h
+++ b/src/MESONT/bond_mesocnt.h
@@ -17,7 +17,9 @@
 ------------------------------------------------------------------------- */
 
 #ifdef BOND_CLASS
+// clang-format off
 BondStyle(mesocnt, BondMesoCNT);
+// clang-format on
 #else
 
 #ifndef LMP_BOND_MESOCNT_H
diff --git a/src/MESONT/pair_mesocnt.h b/src/MESONT/pair_mesocnt.h
index 5b56f70184..941caba34f 100644
--- a/src/MESONT/pair_mesocnt.h
+++ b/src/MESONT/pair_mesocnt.h
@@ -17,7 +17,9 @@
 ------------------------------------------------------------------------- */
 
 #ifdef PAIR_CLASS
+// clang-format off
 PairStyle(mesocnt, PairMesoCNT);
+// clang-format on
 #else
 
 #ifndef LMP_PAIR_MESOCNT_H
diff --git a/src/MESONT/pair_mesocnt_viscous.h b/src/MESONT/pair_mesocnt_viscous.h
index e6fb88a9d2..84a2391031 100644
--- a/src/MESONT/pair_mesocnt_viscous.h
+++ b/src/MESONT/pair_mesocnt_viscous.h
@@ -15,11 +15,13 @@
    Contributing author: Philipp Kloza (University of Cambridge)
                         pak37@cam.ac.uk
 ------------------------------------------------------------------------- */
-
 #ifdef PAIR_CLASS
-PairStyle(mesocnt / viscous, PairMesoCNTViscous);
+// clang-format off
+PairStyle(mesocnt/viscous, PairMesoCNTViscous);
+// clang-format on
 #else
 
+
 #ifndef LMP_PAIR_MESOCNT_VISCOUS_H
 #define LMP_PAIR_MESOCNT_VISCOUS_H