diff --git a/wrapper.c b/wrapper.c
index 5f427d9..90b0e1e 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -14,7 +14,7 @@ void _go_git_populate_apply_cb(git_apply_options *options)
 
 void _go_git_populate_commit_sign_cb(git_rebase_options *opts)
 {
-  opts->signing_cb = (git_commit_signing_cb)commitSignCallback;
+	opts->signing_cb = (git_commit_signing_cb)commitSignCallback;
 }
 
 void _go_git_populate_remote_cb(git_clone_options *opts)