diff --git a/LibGit2Sharp/Core/GitCloneOptions.cs b/LibGit2Sharp/Core/GitCloneOptions.cs
index bed647e31..1ad86c5c3 100644
--- a/LibGit2Sharp/Core/GitCloneOptions.cs
+++ b/LibGit2Sharp/Core/GitCloneOptions.cs
@@ -23,8 +23,6 @@ internal struct GitCloneOptions
         public GitCloneLocal Local;
         public IntPtr CheckoutBranch;
 
-        public IntPtr signature; // Really a SignatureSafeHandle
-
         public IntPtr RepositoryCb;
         public IntPtr RepositoryCbPayload;