diff --git a/src/fmu/sumo/uploader/forward_models/__init__.py b/src/fmu/sumo/uploader/forward_models/__init__.py
index 4572a10..dad35f3 100644
--- a/src/fmu/sumo/uploader/forward_models/__init__.py
+++ b/src/fmu/sumo/uploader/forward_models/__init__.py
@@ -46,7 +46,8 @@ def validate_pre_experiment(
 
         err_msg = (
             "Your config uses Sumo"
-            ", please authenticate using:"
+            ", please authenticate using by running the following"
+            " in your terminal:"
             f"sumo_login{f' -e {env}' if env != 'prod' else ''}"
         )