diff --git a/Resources/Maps/Dungeon/experiment.yml b/Resources/Maps/Dungeon/experiment.yml
index 590692a6bb..a2668db44b 100644
--- a/Resources/Maps/Dungeon/experiment.yml
+++ b/Resources/Maps/Dungeon/experiment.yml
@@ -7500,7 +7500,7 @@ entities:
     - type: Transform
       pos: 8.569059,28.508856
       parent: 1653
-- proto: MaterialDiamond
+- proto: MaterialDiamond1
   entities:
   - uid: 821
     components: