diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/item/ExoSuitProbeItem.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/item/ExoSuitProbeItem.kt
index e9b80a138..7a89c2450 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/item/ExoSuitProbeItem.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/item/ExoSuitProbeItem.kt
@@ -48,13 +48,15 @@ class ExoSuitProbeItem : Item(Properties().tab(OverdriveThatMatters.INSTANCE.CRE
 	}
 
 	override fun finishUsingItem(itemStack: ItemStack, level: Level, player: LivingEntity): ItemStack {
+		if (player !is Player) return super.finishUsingItem(itemStack, level, player)
 		val mattery = player.matteryPlayer ?: return super.finishUsingItem(itemStack, level, player)
 
 		if (mattery.hasExoSuit) {
 			return super.finishUsingItem(itemStack, level, player)
 		}
 
-		itemStack.shrink(1)
+		if (!player.abilities.instabuild)
+			itemStack.shrink(1)
 
 		if (player is ServerPlayer) {
 			mattery.hasExoSuit = true