diff --git a/src/classes.py b/src/classes.py
index b45ae5f..28a93d5 100644
--- a/src/classes.py
+++ b/src/classes.py
@@ -58,7 +58,8 @@ class Layer:
     Setting Laser Energy to NoneType.
                 """)
                 # Placeholder
-                self.laser_energy = None
+                self.laser_energy = "N/A"
+                self.laser_energy_unit = "J/s"
             # Laser rasternig section
             self.laser_rastering_geometry = self.extra["Laser Rastering Geometry"]["value"]
             self.laser_rastering_positions = self.extra["Laser Rastering Position"]["value"]