diff --git a/QgisModelBaker/gui/panel/session_panel.py b/QgisModelBaker/gui/panel/session_panel.py
index 2ca63c22..5427b48a 100644
--- a/QgisModelBaker/gui/panel/session_panel.py
+++ b/QgisModelBaker/gui/panel/session_panel.py
@@ -108,6 +108,13 @@ def __init__(
 
         # set up the values
         self.configuration = general_configuration
+        if self.configuration.tool & DbIliMode.pg:
+            # on pg we should consider the user account name as fallback
+            if (
+                not self.configuration.db_use_super_login
+                and not self.configuration.dbusr
+            ):
+                self.configuration.dbusr = QgsApplication.userLoginName()
         if self.db_action_type == DbActionType.GENERATE:
             self.configuration.ilifile = ""
             if os.path.isfile(self.file):