diff --git a/src/atom_vec.cpp b/src/atom_vec.cpp
index 1d2c99dd17..b0e5a11387 100644
--- a/src/atom_vec.cpp
+++ b/src/atom_vec.cpp
@@ -1876,7 +1876,7 @@ void AtomVec::write_data(FILE *fp, int n, double **buf)
   int i,j,m,nn,datatype,cols;
 
   for (i = 0; i < n; i++) {
-    fmt::print(fp,"{}",(tagint) ubuf(buf[i][0]).i);
+    fmt::print(fp,"{}",ubuf(buf[i][0]).i);
 
     j = 1;
     for (nn = 1; nn < ndata_atom; nn++) {
@@ -2024,7 +2024,7 @@ void AtomVec::write_vel(FILE *fp, int n, double **buf)
   int i,j,m,nn,datatype,cols;
 
   for (i = 0; i < n; i++) {
-    fmt::print(fp,"{}",(tagint) ubuf(buf[i][0]).i);
+    fmt::print(fp,"{}",ubuf(buf[i][0]).i);
 
     j = 1;
     for (nn = 1; nn < ndata_vel; nn++) {
diff --git a/src/atom_vec_ellipsoid.cpp b/src/atom_vec_ellipsoid.cpp
index 4190f9ff6e..0d8c41da39 100644
--- a/src/atom_vec_ellipsoid.cpp
+++ b/src/atom_vec_ellipsoid.cpp
@@ -521,9 +521,8 @@ int AtomVecEllipsoid::pack_data_bonus(double **buf, int /*flag*/)
 void AtomVecEllipsoid::write_data_bonus(FILE *fp, int n, double **buf, int /*flag*/)
 {
   for (int i = 0; i < n; i++) {
-    fmt::print(fp,"{} {} {} {} {} {} {} {}",
-	       (tagint) ubuf(buf[i][0]).i,buf[i][1],buf[i][2],buf[i][3],
-	       buf[i][4],buf[i][5],buf[i][6],buf[i][7]);
+    fmt::print(fp,"{} {} {} {} {} {} {} {}\n", ubuf(buf[i][0]).i,buf[i][1],
+               buf[i][2],buf[i][3],buf[i][4],buf[i][5],buf[i][6],buf[i][7]);
   }
 }
 
diff --git a/src/atom_vec_line.cpp b/src/atom_vec_line.cpp
index 6a368fe2da..8466efcc18 100644
--- a/src/atom_vec_line.cpp
+++ b/src/atom_vec_line.cpp
@@ -502,9 +502,8 @@ int AtomVecLine::pack_data_bonus(double **buf, int /*flag*/)
 void AtomVecLine::write_data_bonus(FILE *fp, int n, double **buf, int /*flag*/)
 {
   for (int i = 0; i < n; i++) {
-    fmt::print(fp,"{} {} {} {} {}",
-	       (tagint) ubuf(buf[i][0]).i,
-	       buf[i][1],buf[i][2],buf[i][3],buf[i][4]);
+    fmt::print(fp,"{} {} {} {} {}\n",ubuf(buf[i][0]).i,
+               buf[i][1],buf[i][2],buf[i][3],buf[i][4]);
   }
 }
 
diff --git a/src/atom_vec_tri.cpp b/src/atom_vec_tri.cpp
index 16183995fe..2b518751fe 100644
--- a/src/atom_vec_tri.cpp
+++ b/src/atom_vec_tri.cpp
@@ -738,10 +738,8 @@ int AtomVecTri::pack_data_bonus(double **buf, int /*flag*/)
 void AtomVecTri::write_data_bonus(FILE *fp, int n, double **buf, int /*flag*/)
 {
   for (int i = 0; i < n; i++) {
-    fmt::print(fp,"{} {} {} {} {} {} {} {} {} {} {}",
-	       (tagint) ubuf(buf[i][0]).i,
-	       buf[i][1],buf[i][2],buf[i][3],
-	       buf[i][4],buf[i][5],buf[i][6],
+    fmt::print(fp,"{} {} {} {} {} {} {} {} {} {} {}\n",ubuf(buf[i][0]).i,
+	       buf[i][1],buf[i][2],buf[i][3],buf[i][4],buf[i][5],buf[i][6],
 	       buf[i][7],buf[i][8],buf[i][9]);
   }
 }