diff --git a/git-arr b/git-arr
index 418f883..b9c9d46 100755
--- a/git-arr
+++ b/git-arr
@@ -380,7 +380,7 @@ def generate(output, skip_index = False):
 
             # To avoid regenerating files that have not changed, we will
             # instruct write_to() to set their mtime to the branch's committer
-            # date, and then compare against it to decide wether or not to
+            # date, and then compare against it to decide whether or not to
             # write.
             branch_mtime = r.commit(bn).committer_date.epoch
 
diff --git a/git.py b/git.py
index 8aa9eb1..bddca70 100644
--- a/git.py
+++ b/git.py
@@ -253,6 +253,7 @@ class Repo:
             cmd.max_count = limit
 
         cmd.arg(ref)
+        cmd.arg('--')
 
         for l in cmd.run():
             yield l.rstrip('\n')
@@ -273,6 +274,7 @@ class Repo:
         cmd.header = None
 
         cmd.arg(ref)
+        cmd.arg('--')
 
         info_buffer = ''
         count = 0