diff --git a/git.zig b/git.zig
index acc6ab967a8d5ea57c6a1a70a93fe88bfba63efd..88f5b3b68eb76b5c9176caf4c0cfe6bd5b5c127a 100644
--- a/git.zig
+++ b/git.zig
@@ -114,7 +114,7 @@ pub fn parseCommit(alloc: std.mem.Allocator, commitfile: string) !Commit {
     var parents = std.ArrayList(CommitId).init(alloc);
     errdefer parents.deinit();
     while (true) {
-        const line = iter.next().?;
+        const line = iter.next() orelse break;
         if (line.len == 0) break;
         const space = std.mem.indexOfScalar(u8, line, ' ').?;
         const k = line[0..space];