diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
index 7c1e482eea..022f1b55c1 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/SlayerPlugin.java
@@ -738,7 +738,14 @@ public class SlayerPlugin extends Plugin
 
 		if (cachedXp != 0)
 		{
-			final int taskKillExp = Task.getTask(taskName).getExpectedKillExp();
+			final Task task = Task.getTask(taskName);
+
+			if (task == null)
+			{
+				return;
+			}
+
+			final int taskKillExp = task.getExpectedKillExp();
 
 			// Only count exp gain as a kill if the task either has no expected exp for a kill, or if the exp gain is equal
 			// to the expected exp gain for the task.
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/Task.java b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/Task.java
index d074b4fd6d..351ad38b6f 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/slayer/Task.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/slayer/Task.java
@@ -33,6 +33,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import lombok.AccessLevel;
+import javax.annotation.Nullable;
 import lombok.Getter;
 import net.runelite.api.ItemID;
 import net.runelite.api.NpcID;
@@ -355,6 +356,7 @@ enum Task
 		this.expectedKillExp = 0;
 	}
 
+	@Nullable
 	static Task getTask(String taskName)
 	{
 		return tasks.get(taskName.toLowerCase());