diff --git a/git-odb/src/pack/data/encode/write.rs b/git-odb/src/pack/data/encode/write.rs
index 12895ed29ea..c936a80d6a9 100644
--- a/git-odb/src/pack/data/encode/write.rs
+++ b/git-odb/src/pack/data/encode/write.rs
@@ -85,7 +85,13 @@ where
                     written += std::io::copy(&mut &*entry.compressed_data, &mut self.output)? as u64;
                 }
             }
-            None => todo!("write footer and set is_done = true"),
+            None => {
+                let digest = self.output.hash.clone().digest();
+                self.output.write_all(&digest[..])?;
+                written += digest.len() as u64;
+                self.output.flush()?;
+                self.is_done = true;
+            }
         };
         Ok(written)
     }
diff --git a/git-odb/tests/odb/pack/data/encode.rs b/git-odb/tests/odb/pack/data/encode.rs
index 679799b3ac7..88f3c605b03 100644
--- a/git-odb/tests/odb/pack/data/encode.rs
+++ b/git-odb/tests/odb/pack/data/encode.rs
@@ -18,7 +18,6 @@ mod entries {
         }
 
         #[test]
-        #[should_panic]
         fn all_input_objects() {
             (|| -> crate::Result {
                 let db = db(DbKind::AbunchOfRandomObjects)?;
@@ -48,7 +47,8 @@ mod entries {
                         pack::data::Version::V2,
                         git_hash::Kind::Sha1,
                     );
-                    let n = pack_writer.next().expect("one entries bundle was written")?;
+                    let mut n = pack_writer.next().expect("one entries bundle was written")?;
+                    n += pack_writer.next().expect("the trailer was written")?;
                     assert!(
                         pack_writer.next().is_none(),
                         "there is nothing more to iterate this time"
@@ -63,6 +63,7 @@ mod entries {
                     pack_file.metadata()?.len(),
                     "it reports the correct amount of written bytes"
                 );
+                // TODO: verify the new pack
 
                 Ok(())
             })()