diff --git a/src/main/java/ch/njol/skript/bukkitutil/BukkitUnsafe.java b/src/main/java/ch/njol/skript/bukkitutil/BukkitUnsafe.java
index 32e1712ff30..fd11c49cdb1 100644
--- a/src/main/java/ch/njol/skript/bukkitutil/BukkitUnsafe.java
+++ b/src/main/java/ch/njol/skript/bukkitutil/BukkitUnsafe.java
@@ -65,6 +65,7 @@ public class BukkitUnsafe {
 	@Nullable
 	private static Map<Integer,Material> idMappings;
 
+	@Nullable
 	@Deprecated
 	public static Material getMaterialFromMinecraftId(String id) {
 		return getMaterialFromNamespacedId(id);