diff --git a/src/CLASS2/dihedral_class2.cpp b/src/CLASS2/dihedral_class2.cpp
index ea81bab2f4..529c7801af 100644
--- a/src/CLASS2/dihedral_class2.cpp
+++ b/src/CLASS2/dihedral_class2.cpp
@@ -209,7 +209,7 @@ void DihedralClass2::compute(int eflag, int vflag)
       MPI_Comm_rank(world,&me);
       if (screen) {
 	char str[128];
-	sprintf(str,"Dihedral problem: %d %d %d %d %d %d\n",
+	sprintf(str,"Dihedral problem: %d %d %d %d %d %d",
 		me,update->ntimestep,
 		atom->tag[i1],atom->tag[i2],atom->tag[i3],atom->tag[i4]);
 	error->warning(str);
diff --git a/src/CLASS2/improper_class2.cpp b/src/CLASS2/improper_class2.cpp
index 95601aed27..151162797c 100644
--- a/src/CLASS2/improper_class2.cpp
+++ b/src/CLASS2/improper_class2.cpp
@@ -156,7 +156,7 @@ void ImproperClass2::compute(int eflag, int vflag)
 	MPI_Comm_rank(world,&me);
 	if (screen) {
 	  char str[128];
-	  sprintf(str,"Improper problem: %d %d %d %d %d %d\n",
+	  sprintf(str,"Improper problem: %d %d %d %d %d %d",
 		  me,update->ntimestep,
 		  atom->tag[i1],atom->tag[i2],atom->tag[i3],atom->tag[i4]);
 	  error->warning(str);