diff --git a/reclient_helper.py b/reclient_helper.py
index c81c28d86..835654800 100644
--- a/reclient_helper.py
+++ b/reclient_helper.py
@@ -196,9 +196,9 @@ def build_context(argv, tool):
   reclient_cfg = find_reclient_cfg()
   if reclient_bin_dir is None or reclient_cfg is None:
     print(("Build is configured to use reclient but necessary binaries "
-           "or config files can't be found.  Developer builds with "
-           "reclient are not yet supported.  Try regenerating your "
-           "build with use_goma in place of use_remoteexec for now."),
+           "or config files can't be found.\n"
+           "Please check if `download_remoteexec_cfg: True` custom var is set"
+           " in `.gclient`, and run `gclient sync`."),
           file=sys.stderr)
     yield 1
     return