diff --git a/src/publishCommon.ml b/src/publishCommon.ml
index 50069c7..c44ad17 100644
--- a/src/publishCommon.ml
+++ b/src/publishCommon.ml
@@ -22,7 +22,7 @@ let git_command ?dir ?(verbose=false) args =
 let git_query ?dir args =
   let dir = dir >>| OpamFilename.Dir.to_string in
   OpamProcess.Job.run @@
-  OpamSystem.make_command ~verbose:false ?dir "git" args @@> fun r ->
+  OpamSystem.make_command ~verbose:false ~allow_stdin:true ?dir "git" args @@> fun r ->
   if OpamProcess.is_success r then
     match r.OpamProcess.r_stdout with
     | r :: _ -> Done (Some r)