diff --git a/src/data/arena-tag.ts b/src/data/arena-tag.ts
index 32a19863085..a552775a2ee 100644
--- a/src/data/arena-tag.ts
+++ b/src/data/arena-tag.ts
@@ -899,7 +899,7 @@ class SpikesTag extends DamagingTrapTag {
   }
 
   protected override get onRemoveMessageKey(): string {
-    return "arenaTag:spikesOnAdd" + this.i18nSideKey;
+    return "arenaTag:spikesOnRemove" + this.i18nSideKey;
   }
 
   protected override get triggerMessageKey(): string {
@@ -1418,7 +1418,7 @@ class GrassWaterPledgeTag extends SerializableArenaTag {
   }
 
   protected override get onRemoveMessageKey(): string {
-    return "arenaTag:grassWaterPledgeOnAdd" + this.i18nSideKey;
+    return "arenaTag:grassWaterPledgeOnRemove" + this.i18nSideKey;
   }
 
   // TODO: Move speed drops into this class's `apply` method instead of an explicit check for it