diff --git a/src/comm.c b/src/comm.c
index 9aab98b02..f41b4592a 100644
--- a/src/comm.c
+++ b/src/comm.c
@@ -118,7 +118,6 @@ writeline (struct linebuffer *line, FILE *stream, int class)
     }
 
   fwrite (line->buffer, sizeof (char), line->length, stream);
-  putc ('\n', stream);
 }
 
 /* Compare INFILES[0] and INFILES[1].