diff --git a/src/EXTRA-MOLECULE/pair_hbond_dreiding_morse_angleoffset.cpp b/src/EXTRA-MOLECULE/pair_hbond_dreiding_morse_angleoffset.cpp
index dedbbb8c9f..a687d4d7ea 100644
--- a/src/EXTRA-MOLECULE/pair_hbond_dreiding_morse_angleoffset.cpp
+++ b/src/EXTRA-MOLECULE/pair_hbond_dreiding_morse_angleoffset.cpp
@@ -44,7 +44,6 @@ PairHbondDreidingMorseAngleoffset::PairHbondDreidingMorseAngleoffset(LAMMPS *lmp
   PairHbondDreidingMorse(lmp) {
 
   angle_offset_flag = 1;
-  angle_offset_global = 0.0;
 }
 
 // /* ----------------------------------------------------------------------
diff --git a/src/MOLECULE/pair_hbond_dreiding_lj.cpp b/src/MOLECULE/pair_hbond_dreiding_lj.cpp
index ebe7fdd123..0511ecb021 100644
--- a/src/MOLECULE/pair_hbond_dreiding_lj.cpp
+++ b/src/MOLECULE/pair_hbond_dreiding_lj.cpp
@@ -311,7 +311,7 @@ void PairHbondDreidingLJ::allocate()
 void PairHbondDreidingLJ::settings(int narg, char **arg)
 {
 
-  // narg = 4 for standard form and narg = 5 if angleoffset variant (from EXTRA-MOLECULE)
+  // narg = 4 for standard form, narg = 5 or 6 if angleoffset LJ or Morse variants respectively (from EXTRA-MOLECULE)
   if (narg != 4 && narg != 5) error->all(FLERR,"Illegal pair_style command");
 
   ap_global = utils::inumeric(FLERR,arg[0],false,lmp);
diff --git a/src/MOLECULE/pair_hbond_dreiding_morse.cpp b/src/MOLECULE/pair_hbond_dreiding_morse.cpp
index 34fddc9f89..56f9c16442 100644
--- a/src/MOLECULE/pair_hbond_dreiding_morse.cpp
+++ b/src/MOLECULE/pair_hbond_dreiding_morse.cpp
@@ -246,7 +246,9 @@ void PairHbondDreidingMorse::compute(int eflag, int vflag)
 
 void PairHbondDreidingMorse::coeff(int narg, char **arg)
 {
-  if (narg < 7 || narg > 11)
+  int maxarg = 12;
+  if (angle_offset_flag == 1) maxarg = 12;
+  if (narg < 7 || narg > maxarg)
     error->all(FLERR,"Incorrect args for pair coefficients");
   if (!allocated) allocate();