diff --git a/src/MOLECULE/dihedral_charmm.cpp b/src/MOLECULE/dihedral_charmm.cpp
index a92d261bc8..d1878beb1a 100644
--- a/src/MOLECULE/dihedral_charmm.cpp
+++ b/src/MOLECULE/dihedral_charmm.cpp
@@ -379,13 +379,14 @@ void DihedralCharmm::init_style()
     if (weight[i] > 0.0) weightflag = 1;
 
   if (weightflag) {
+    int itmp;
     if (force->pair == NULL)
       error->all("Dihedral charmm is incompatible with Pair style");
-    lj14_1 = (double **) force->pair->extract("lj14_1");
-    lj14_2 = (double **) force->pair->extract("lj14_2");
-    lj14_3 = (double **) force->pair->extract("lj14_3");
-    lj14_4 = (double **) force->pair->extract("lj14_4");
-    int *ptr = (int *) force->pair->extract("implicit");
+    lj14_1 = (double **) force->pair->extract("lj14_1",itmp);
+    lj14_2 = (double **) force->pair->extract("lj14_2",itmp);
+    lj14_3 = (double **) force->pair->extract("lj14_3",itmp);
+    lj14_4 = (double **) force->pair->extract("lj14_4",itmp);
+    int *ptr = (int *) force->pair->extract("implicit",itmp);
     if (!lj14_1 || !lj14_2 || !lj14_3 || !lj14_4 || !ptr)
       error->all("Dihedral charmm is incompatible with Pair style");
     implicit = *ptr;
diff --git a/src/MOLECULE/pair_lj_charmm_coul_charmm.cpp b/src/MOLECULE/pair_lj_charmm_coul_charmm.cpp
index c54732fd2e..670bc3c53c 100644
--- a/src/MOLECULE/pair_lj_charmm_coul_charmm.cpp
+++ b/src/MOLECULE/pair_lj_charmm_coul_charmm.cpp
@@ -497,12 +497,16 @@ double PairLJCharmmCoulCharmm::single(int i, int j, int itype, int jtype,
 
 /* ---------------------------------------------------------------------- */
 
-void *PairLJCharmmCoulCharmm::extract(char *str)
+void *PairLJCharmmCoulCharmm::extract(char *str, int &dim)
 {
+  dim = 2;
   if (strcmp(str,"lj14_1") == 0) return (void *) lj14_1;
-  else if (strcmp(str,"lj14_2") == 0) return (void *) lj14_2;
-  else if (strcmp(str,"lj14_3") == 0) return (void *) lj14_3;
-  else if (strcmp(str,"lj14_4") == 0) return (void *) lj14_4;
-  else if (strcmp(str,"implicit") == 0) return (void *) &implicit;
+  if (strcmp(str,"lj14_2") == 0) return (void *) lj14_2;
+  if (strcmp(str,"lj14_3") == 0) return (void *) lj14_3;
+  if (strcmp(str,"lj14_4") == 0) return (void *) lj14_4;
+
+  dim = 0;
+  if (strcmp(str,"implicit") == 0) return (void *) &implicit;
+
   return NULL;
 }
diff --git a/src/MOLECULE/pair_lj_charmm_coul_charmm.h b/src/MOLECULE/pair_lj_charmm_coul_charmm.h
index d83694d45c..970e03805c 100644
--- a/src/MOLECULE/pair_lj_charmm_coul_charmm.h
+++ b/src/MOLECULE/pair_lj_charmm_coul_charmm.h
@@ -38,7 +38,7 @@ class PairLJCharmmCoulCharmm : public Pair {
   void write_restart_settings(FILE *);
   void read_restart_settings(FILE *);
   virtual double single(int, int, int, int, double, double, double, double &);
-  virtual void *extract(char *);
+  virtual void *extract(char *, int &);
 
  protected:
   int implicit;
diff --git a/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.cpp b/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.cpp
index 21812b03c7..d81b4f9d17 100644
--- a/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.cpp
+++ b/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.cpp
@@ -214,15 +214,3 @@ double PairLJCharmmCoulCharmmImplicit::single(int i, int j,
 
   return eng;
 }
-
-/* ---------------------------------------------------------------------- */
-
-void *PairLJCharmmCoulCharmmImplicit::extract(char *str)
-{
-  if (strcmp(str,"lj14_1") == 0) return (void *) lj14_1;
-  else if (strcmp(str,"lj14_2") == 0) return (void *) lj14_2;
-  else if (strcmp(str,"lj14_3") == 0) return (void *) lj14_3;
-  else if (strcmp(str,"lj14_4") == 0) return (void *) lj14_4;
-  else if (strcmp(str,"implicit") == 0) return (void *) &implicit;
-  return NULL;
-}
diff --git a/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.h b/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.h
index 2fd9b61099..0b95f8fcdd 100644
--- a/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.h
+++ b/src/MOLECULE/pair_lj_charmm_coul_charmm_implicit.h
@@ -29,7 +29,6 @@ class PairLJCharmmCoulCharmmImplicit : public PairLJCharmmCoulCharmm {
   PairLJCharmmCoulCharmmImplicit(class LAMMPS *);
   void compute(int, int);
   double single(int, int, int, int, double, double, double, double &);
-  void *extract(char *);
 };
 
 }