diff --git a/src/pair_lj_cubic.cpp b/src/pair_lj_cubic.cpp
index 97f82b39c3cb7554c3b7988c4dd980caeb688803..13f6e479e4c882ea2fb622a4edc1e073a78bae8e 100644
--- a/src/pair_lj_cubic.cpp
+++ b/src/pair_lj_cubic.cpp
@@ -34,6 +34,15 @@ using namespace LAMMPS_NS;
 #define MIN(a,b) ((a) < (b) ? (a) : (b))
 #define MAX(a,b) ((a) > (b) ? (a) : (b))
 
+// LJ quantities scaled by epsilon and rmin = sigma*2^1/6
+
+const double PairLJCubic::rt6two = 1.1224621;  // 2^1/6
+const double PairLJCubic::s = 1.1086834;       // inflection point = (13/7)^1/6
+const double PairLJCubic::phis = -0.7869823;   // energy at s
+const double PairLJCubic::dphids = 2.6899009;  // gradient at s
+const double PairLJCubic::a3 = 27.93357;       // cubic coefficient
+const double PairLJCubic::sm = 1.5475375;      // cubic cutoff = s*67/48
+
 /* ---------------------------------------------------------------------- */
 
 PairLJCubic::PairLJCubic(LAMMPS *lmp) : Pair(lmp) {}
diff --git a/src/pair_lj_cubic.h b/src/pair_lj_cubic.h
index 25b8d903442ec23f7ec1abc03ff72ead386531dc..f8afb8e02cdadc4b3d04e641288b0efec68c6f8d 100644
--- a/src/pair_lj_cubic.h
+++ b/src/pair_lj_cubic.h
@@ -45,12 +45,12 @@ class PairLJCubic : public Pair {
 
   // LJ quantities scaled by epsilon and rmin = sigma*2^1/6
 
-  static const double rt6two = 1.1224621;  // 2^1/6
-  static const double s = 1.1086834;       // inflection point = (13/7)^1/6
-  static const double phis = -0.7869823;   // energy at s
-  static const double dphids = 2.6899009;  // gradient at s
-  static const double a3 = 27.93357;       // cubic coefficient
-  static const double sm = 1.5475375;      // cubic cutoff = s*67/48
+  static const double rt6two;  // 2^1/6
+  static const double s;       // inflection point = (13/7)^1/6
+  static const double phis;    // energy at s
+  static const double dphids;  // gradient at s
+  static const double a3;      // cubic coefficient
+  static const double sm;      // cubic cutoff = s*67/48
 
   void allocate();
 };