diff --git a/build.gradle b/build.gradle
index a2adcb6..1073735 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,7 +29,7 @@ repositories {
 		url "https://cursemaven.com"
 	}
 
-	maven{
+	maven {
 		name 'Impactor Economy'
 		url  "https://maven.impactdev.net/repository/development/"
 	}
diff --git a/src/main/java/unsafedodo/guishop/command/GUIShopAddHeldItemCommand.java b/src/main/java/unsafedodo/guishop/command/GUIShopAddHeldItemCommand.java
index 28888ed..886cbb6 100644
--- a/src/main/java/unsafedodo/guishop/command/GUIShopAddHeldItemCommand.java
+++ b/src/main/java/unsafedodo/guishop/command/GUIShopAddHeldItemCommand.java
@@ -8,6 +8,8 @@
 import me.lucko.fabric.api.permissions.v0.Permissions;
 import net.minecraft.command.CommandRegistryAccess;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NbtCompound;
+import net.minecraft.nbt.StringNbtReader;
 import net.minecraft.server.command.CommandManager;
 import net.minecraft.server.command.ServerCommandSource;
 import net.minecraft.text.Text;
@@ -70,7 +72,15 @@ public static int run(CommandContext<ServerCommandSource> context) throws Comman
                 }
             }
 
-            foundShop.getItems().add(new ShopItem(itemName, itemMaterial, buyItemPrice, sellItemPrice, new String[]{}, heldItem.getNbt(), quantities));
+            foundShop.getItems().add(new ShopItem(
+                    itemName,
+                    itemMaterial,
+                    buyItemPrice,
+                    sellItemPrice,
+                    new String[]{},
+                    heldItem.getNbt() != null ? heldItem.getNbt() : StringNbtReader.parse("{}"),
+                    quantities
+            ));
             context.getSource().sendFeedback(() -> Text.literal("Item successfully added").formatted(Formatting.GREEN), false);
         } catch (NumberFormatException nfe) {
             context.getSource().sendFeedback(() -> Text.literal("Could not add item: Invalid quantities").formatted(Formatting.RED), false);
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
index e902b7a..ed5e60e 100644
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -7,6 +7,9 @@
 	"authors": [
 		"UnsafeDodo"
 	],
+	"contributors": [
+		"MrShawn"
+	],
 	"contact": {
 		"homepage": "https://fabricmc.net/",
 		"sources": "https://github.com/FabricMC/fabric-example-mod"