diff --git a/src/USER-CGDNA/pair_oxdna2_dh.h b/src/USER-CGDNA/pair_oxdna2_dh.h
index 2a41524126..da72060927 100644
--- a/src/USER-CGDNA/pair_oxdna2_dh.h
+++ b/src/USER-CGDNA/pair_oxdna2_dh.h
@@ -28,7 +28,7 @@ class PairOxdna2Dh : public Pair {
  public:
   PairOxdna2Dh(class LAMMPS *);
   virtual ~PairOxdna2Dh();
-  virtual void compute_interaction_sites(double *, double *, double *, 
+  virtual void compute_interaction_sites(double *, double *, double *,
     double *);
   virtual void compute(int, int);
   void settings(int, char **);
diff --git a/src/USER-CGDNA/pair_oxrna2_dh.cpp b/src/USER-CGDNA/pair_oxrna2_dh.cpp
index 045a6aa6bc..7cc785ad39 100644
--- a/src/USER-CGDNA/pair_oxrna2_dh.cpp
+++ b/src/USER-CGDNA/pair_oxrna2_dh.cpp
@@ -35,7 +35,7 @@ PairOxrna2Dh::~PairOxrna2Dh()
 /* ----------------------------------------------------------------------
     compute vector COM-sugar-phosphate backbone interaction site in oxRNA2
 ------------------------------------------------------------------------- */
-void PairOxrna2Dh::compute_interaction_sites(double e1[3], double /*e2*/[3], 
+void PairOxrna2Dh::compute_interaction_sites(double e1[3], double /*e2*/[3],
   double e3[3], double r[3])
 {
   double d_cs_x=-0.4, d_cs_z=+0.2;
diff --git a/src/USER-CGDNA/pair_oxrna2_hbond.cpp b/src/USER-CGDNA/pair_oxrna2_hbond.cpp
index 65f266ba36..08e1b1d737 100644
--- a/src/USER-CGDNA/pair_oxrna2_hbond.cpp
+++ b/src/USER-CGDNA/pair_oxrna2_hbond.cpp
@@ -27,7 +27,7 @@ PairOxrna2Hbond::PairOxrna2Hbond(LAMMPS *lmp) : PairOxdnaHbond(lmp)
 
   // sequence-specific base-pairing strength
   // A:0 C:1 G:2 U:3, 5'- [i][j] -3'
-   
+
   alpha_hb[0][0] = 1.00000;
   alpha_hb[0][1] = 1.00000;
   alpha_hb[0][2] = 1.00000;
diff --git a/src/USER-CGDNA/pair_oxrna2_stk.cpp b/src/USER-CGDNA/pair_oxrna2_stk.cpp
index 5fd32099f3..de2cd63799 100644
--- a/src/USER-CGDNA/pair_oxrna2_stk.cpp
+++ b/src/USER-CGDNA/pair_oxrna2_stk.cpp
@@ -49,7 +49,7 @@ PairOxrna2Stk::PairOxrna2Stk(LAMMPS *lmp) : Pair(lmp)
   // sequence-specific stacking strength
   // A:0 C:1 G:2 U:3, 5'- [i][j] -3'
 
-  eta_st[0][0] = 0.93851; 
+  eta_st[0][0] = 0.93851;
   eta_st[0][1] = 1.12901;
   eta_st[0][2] = 1.15626;
   eta_st[0][3] = 0.88850;
@@ -133,7 +133,7 @@ PairOxrna2Stk::~PairOxrna2Stk()
    tally energy and virial into global and per-atom accumulators
 
    NOTE: Although this is a pair style interaction, the algorithm below
-   follows the virial incrementation of the bond style. This is because 
+   follows the virial incrementation of the bond style. This is because
    the bond topology is used in the main compute loop.
 ------------------------------------------------------------------------- */
 
@@ -391,13 +391,13 @@ void PairOxrna2Stk::compute(int eflag, int vflag)
     if (cost6p < -1.0) cost6p = -1.0;
     theta6p = acos(cost6p);
 
-    aux3p[0] = d3p_x * ax[0] + d3p_y * ay[0] + d3p_z * az[0]; 
-    aux3p[1] = d3p_x * ax[1] + d3p_y * ay[1] + d3p_z * az[1]; 
-    aux3p[2] = d3p_x * ax[2] + d3p_y * ay[2] + d3p_z * az[2]; 
+    aux3p[0] = d3p_x * ax[0] + d3p_y * ay[0] + d3p_z * az[0];
+    aux3p[1] = d3p_x * ax[1] + d3p_y * ay[1] + d3p_z * az[1];
+    aux3p[2] = d3p_x * ax[2] + d3p_y * ay[2] + d3p_z * az[2];
 
-    aux5p[0] = d5p_x * bx[0] + d5p_y * by[0] + d5p_z * bz[0]; 
-    aux5p[1] = d5p_x * bx[1] + d5p_y * by[1] + d5p_z * bz[1]; 
-    aux5p[2] = d5p_x * bx[2] + d5p_y * by[2] + d5p_z * bz[2]; 
+    aux5p[0] = d5p_x * bx[0] + d5p_y * by[0] + d5p_z * bz[0];
+    aux5p[1] = d5p_x * bx[1] + d5p_y * by[1] + d5p_z * bz[1];
+    aux5p[2] = d5p_x * bx[2] + d5p_y * by[2] + d5p_z * bz[2];
 
     cost9 = MathExtra::dot3(delr_ss_norm,aux3p);
     if (cost9 >  1.0) cost9 =  1.0;