diff --git a/bridgev2/matrix/provisioning.go b/bridgev2/matrix/provisioning.go
index d05b005e..efd5f380 100644
--- a/bridgev2/matrix/provisioning.go
+++ b/bridgev2/matrix/provisioning.go
@@ -501,7 +501,7 @@ func (prov *ProvisioningAPI) PostLoginWait(w http.ResponseWriter, r *http.Reques
 	if err != nil {
 		zerolog.Ctx(r.Context()).Err(err).Msg("Failed to wait")
 		jsonResponse(w, http.StatusInternalServerError, &mautrix.RespError{
-			Err:     "Failed to wait",
+			Err:     "Failed to wait: " + err.Error(),
 			ErrCode: "M_UNKNOWN",
 		})
 		return