diff --git a/src/main/java/com/gtnewhorizons/modularui/api/drawable/GuiHelper.java b/src/main/java/com/gtnewhorizons/modularui/api/drawable/GuiHelper.java
index 65f4948..8c888ee 100644
--- a/src/main/java/com/gtnewhorizons/modularui/api/drawable/GuiHelper.java
+++ b/src/main/java/com/gtnewhorizons/modularui/api/drawable/GuiHelper.java
@@ -461,7 +461,7 @@ public static List<String> getItemTooltip(ItemStack stack) {
             tooltips = stack.getTooltip(context.getPlayer(), modularGui.mc.gameSettings.advancedItemTooltips);
         } catch (Throwable ignored) {
             tooltips = new ArrayList<>(1);
-            tooltips.set(0, "Error");
+            tooltips.add("Error");
         }
         for (int i = 0; i < tooltips.size(); i++) {
             if (i == 0) {