diff --git a/src/Solver/RubarBE.py b/src/Solver/RubarBE.py
index 7d5cb087..98251299 100644
--- a/src/Solver/RubarBE.py
+++ b/src/Solver/RubarBE.py
@@ -133,7 +133,7 @@ class Rubar3(CommandLineSolver):
 
     def log_file(self):
         name = self._study.name
-        return f"{name}"
+        return f"geomac-i.{name}"
 
     def export(self, study, repertory, qlog=None):
         self._study = study