diff --git a/README.org b/README.org
index c7bfd55..d5a31f2 100644
--- a/README.org
+++ b/README.org
@@ -224,6 +224,8 @@ If you have any question or if you encounter a problem, do not hesitate to [[htt
 * Acknowledgments
 FUSTA is standing on the shoulders of, among others, [[https://github.com/cberner/fuser][fuser]], [[https://github.com/clap-rs/clap][clap]], [[https://github.com/RazrFalcon/memmap2-rs][memmap2]] and [[https://github.com/knsd/daemonize][daemonize]].
 * Changelog
+** v1.7.1
+- Fix missing newline in some cases
 ** v1.7
 - Use 1-based, fully-closed genomic coordinates
 ** v1.6.1
diff --git a/src/fs.rs b/src/fs.rs
index 3afcb74..67ab8e4 100755
--- a/src/fs.rs
+++ b/src/fs.rs
@@ -660,6 +660,14 @@ impl FustaFS {
                     .write_all(&fragment.data())
                     .unwrap_or_else(|_| panic!("Unable to write to `{}`", tmp_filename));
                 index += fragment.data().len();
+                if let Some(c) = fragment.data().last() {
+                    if *c != b'\n' {
+                        tmp_file
+                            .write_all(&[b'\n'])
+                            .unwrap_or_else(|_| panic!("Unable to write to `{}`", tmp_filename));
+                        index += 1;
+                    }
+                }
 
                 fragment.data = Backing::File(self.filename.clone().into(), last_start, index);
                 fragment.refresh_virtual_files();