diff --git a/src/error.cpp b/src/error.cpp
index 448858b02d..3686ab3ecf 100644
--- a/src/error.cpp
+++ b/src/error.cpp
@@ -106,8 +106,9 @@ void Error::one(const char *file, int line, const char *str)
   if (screen) fprintf(screen,"ERROR on proc %d: %s (%s:%d)\n",
 		      me,str,file,line);
   if (universe->nworlds > 1)
-    fprintf(universe->uscreen,"ERROR on proc %d: %s (%s:%d)\n",
-	    universe->me,str,file,line);
+    if (universe->uscreen)
+      fprintf(universe->uscreen,"ERROR on proc %d: %s (%s:%d)\n",
+	      universe->me,str,file,line);
   MPI_Abort(world,1);
 }
 
diff --git a/src/pair_lj96_cut.cpp b/src/pair_lj96_cut.cpp
index 8eb9a3d9d5..0ccc343a4e 100644
--- a/src/pair_lj96_cut.cpp
+++ b/src/pair_lj96_cut.cpp
@@ -452,7 +452,8 @@ void PairLJ96Cut::settings(int narg, char **arg)
 
 void PairLJ96Cut::coeff(int narg, char **arg)
 {
-  if (narg < 4 || narg > 5) error->all(FLERR,"Incorrect args for pair coefficients");
+  if (narg < 4 || narg > 5) 
+    error->all(FLERR,"Incorrect args for pair coefficients");
   if (!allocated) allocate();
 
   int ilo,ihi,jlo,jhi;