diff --git a/Common/pom.xml b/Common/pom.xml
index 1124efc..c44e1f7 100644
--- a/Common/pom.xml
+++ b/Common/pom.xml
@@ -87,6 +87,7 @@
 	    <groupId>com.comphenix.protocol</groupId>
 	    <artifactId>ProtocolLib-API</artifactId>
 	    <version>4.4.0</version>
+         <scope>provided</scope>
 	  </dependency>
    </dependencies>
 </project>
\ No newline at end of file
diff --git a/Spigot/src/main/resources/plugin.yml b/Spigot/src/main/resources/plugin.yml
index 4b9393d..fb0e0dc 100644
--- a/Spigot/src/main/resources/plugin.yml
+++ b/Spigot/src/main/resources/plugin.yml
@@ -1,8 +1,12 @@
 name: WorldGuardExtraFlags
-version: 4.1.2-DEV
 description: Adds more flags to WorldGuard to help manage your server easily!
+
+version: 4.1.2-DEV
+api-version: 1.13
+
 author: isokissa3
 website: https://goldtreevers.net
+
 depend: [ WorldGuard ]
 softdepend: [ MythicMobs, FastAsyncWorldEdit, Essentials, ProtocolLib ]
 
diff --git a/WG/src/main/java/net/goldtreeservers/worldguardextraflags/flags/helpers/MaterialFlag.java b/WG/src/main/java/net/goldtreeservers/worldguardextraflags/flags/helpers/MaterialFlag.java
index 11d618a..883818b 100644
--- a/WG/src/main/java/net/goldtreeservers/worldguardextraflags/flags/helpers/MaterialFlag.java
+++ b/WG/src/main/java/net/goldtreeservers/worldguardextraflags/flags/helpers/MaterialFlag.java
@@ -6,6 +6,8 @@ import com.sk89q.worldguard.protection.flags.Flag;
 import com.sk89q.worldguard.protection.flags.FlagContext;
 import com.sk89q.worldguard.protection.flags.InvalidFlagFormat;
 
+import net.goldtreeservers.worldguardextraflags.utils.SupportedFeatures;
+
 public class MaterialFlag extends Flag<Material>
 {
 	public MaterialFlag(String name)
@@ -36,6 +38,12 @@ public class MaterialFlag extends Flag<Material>
 	@Override
 	public Material unmarshal(Object o)
 	{
-		return Material.matchMaterial(o.toString());
+		Material material = Material.matchMaterial(o.toString());
+		if (material == null && SupportedFeatures.isNewMaterial()) //Fallback to legacy on unmarshal only
+		{
+			material = Material.matchMaterial(o.toString(), true);
+		}
+		
+		return material;
 	}
 }
diff --git a/WG/src/main/java/net/goldtreeservers/worldguardextraflags/utils/SupportedFeatures.java b/WG/src/main/java/net/goldtreeservers/worldguardextraflags/utils/SupportedFeatures.java
index 2a4f1f5..1ab5f13 100644
--- a/WG/src/main/java/net/goldtreeservers/worldguardextraflags/utils/SupportedFeatures.java
+++ b/WG/src/main/java/net/goldtreeservers/worldguardextraflags/utils/SupportedFeatures.java
@@ -12,12 +12,14 @@ import lombok.Getter;
 /**
  * Helper class to decide what features are supported by the server
  */
+@SuppressWarnings("deprecation")
 public class SupportedFeatures
 {
 	@Getter private static boolean frostwalkerSupported;
 	@Getter private static boolean stopSoundSupported;
 	@Getter private static boolean potionEffectEventSupported;
 	@Getter private static boolean potionEffectParticles;
+	@Getter private static boolean newMaterial;
 	
 	static
 	{
@@ -53,5 +55,14 @@ public class SupportedFeatures
 		{
 			
 		}
+		
+		try
+		{
+			SupportedFeatures.newMaterial = Material.LEGACY_AIR != null;
+		}
+		catch(Throwable ignored)
+		{
+			
+		}
 	}
 }