diff --git a/passKit/Models/PasswordStore.swift b/passKit/Models/PasswordStore.swift
index 0ace0f9..5ae5692 100644
--- a/passKit/Models/PasswordStore.swift
+++ b/passKit/Models/PasswordStore.swift
@@ -411,8 +411,8 @@ public class PasswordStore {
         }
         var commits = [GTCommit]()
         let enumerator = try GTEnumerator(repository: storeRepository)
-        if let oid = try storeRepository.headReference().targetOID {
-            try enumerator.pushSHA(oid.sha)
+        if let sha = try storeRepository.headReference().targetOID.sha {
+            try enumerator.pushSHA(sha)
         }
         for _ in 0 ..< count {
             let commit = try enumerator.nextObject(withSuccess: nil)
@@ -554,9 +554,7 @@ public class PasswordStore {
         let newTree = try storeRepository.index().writeTree()
         let headReference = try storeRepository.headReference()
         let commitEnum = try GTEnumerator(repository: storeRepository)
-        if let oid = headReference.targetOID {
-            try commitEnum.pushSHA(oid.sha)
-        }
+        try commitEnum.pushSHA(headReference.targetOID.sha!)
         let parent = commitEnum.nextObject() as! GTCommit
         let signature = gitSignatureForNow
         let commit = try storeRepository.createCommit(with: newTree, message: message, author: signature, committer: signature, parents: [parent], updatingReferenceNamed: headReference.name)