diff --git a/CHANGELOG.md b/CHANGELOG.md
index b63c4b0cc..937e6bd65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 # Changelog
 ## [Unreleased]
+### New features
 ### Changes
+### Bug fixes
+- Fixed glass dust dupe with unfinished lamps (#1134) @Pyritie
 
 ## [0.9.10] - 05.06.2025
 ### New features
diff --git a/kubejs/server_scripts/gregtech/recipes.materials.js b/kubejs/server_scripts/gregtech/recipes.materials.js
index a3b5bbbc8..1e63e277e 100644
--- a/kubejs/server_scripts/gregtech/recipes.materials.js
+++ b/kubejs/server_scripts/gregtech/recipes.materials.js
@@ -666,7 +666,7 @@ function registerGTCEUMetalRecipes(event) {
 
 		event.recipes.gtceu.arc_furnace(`tfg:arc_${material.getName()}_unfinished_lamp`)
 			.itemInputs(unfinishedLampStack)
-			.itemOutputs([materialIngotStack, glassDustStack])
+			.itemOutputs(materialIngotStack)
 			.duration(material.getMass() * 8)
 			.category(GTRecipeCategories.ARC_FURNACE_RECYCLING)
 			.EUt(GTValues.VA[GTValues.ULV])