diff --git a/runelite-api/src/main/java/net/runelite/api/ScriptID.java b/runelite-api/src/main/java/net/runelite/api/ScriptID.java
index 517402dcaa..849baf9139 100644
--- a/runelite-api/src/main/java/net/runelite/api/ScriptID.java
+++ b/runelite-api/src/main/java/net/runelite/api/ScriptID.java
@@ -54,6 +54,15 @@ public final class ScriptID
 	 */
 	public static final int CLOSE_CHATBOX_INPUT = 299;
 
+	/**
+	 * Updates the Diary/Quest interface's scrollbar
+	 * <ul>
+	 * <li> int (boolean) Reset scroll position </li>
+	 * <li> int Number of lines </li>
+	 * </ul>
+	 */
+	public static final int DIARY_QUEST_UPDATE_LINECOUNT = 2523;
+
 	/**
 	 * Initializes the chatbox input to use RuneLite callbacks
 	 * <ul>
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/achievementdiary/DiaryRequirementsPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/achievementdiary/DiaryRequirementsPlugin.java
index 7b43edcd92..aed84fa666 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/achievementdiary/DiaryRequirementsPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/achievementdiary/DiaryRequirementsPlugin.java
@@ -35,10 +35,12 @@ import java.util.Map;
 import javax.inject.Inject;
 import lombok.extern.slf4j.Slf4j;
 import net.runelite.api.Client;
+import net.runelite.api.ScriptID;
 import net.runelite.api.events.WidgetLoaded;
 import net.runelite.api.widgets.Widget;
 import net.runelite.api.widgets.WidgetID;
 import net.runelite.api.widgets.WidgetInfo;
+import net.runelite.client.callback.ClientThread;
 import net.runelite.client.plugins.Plugin;
 import net.runelite.client.plugins.PluginDescriptor;
 import net.runelite.client.plugins.achievementdiary.diaries.ArdougneDiaryRequirement;
@@ -66,6 +68,9 @@ public class DiaryRequirementsPlugin extends Plugin
 	@Inject
 	private Client client;
 
+	@Inject
+	private ClientThread clientThread;
+
 	@Subscribe
 	public void onWidgetLoaded(final WidgetLoaded event)
 	{
@@ -150,11 +155,20 @@ public class DiaryRequirementsPlugin extends Plugin
 			}
 		}
 
+		int lastLine = 0;
 		for (int i = 0; i < newRequirements.size() && i < children.length; i++)
 		{
 			Widget achievementWidget = children[i];
-			achievementWidget.setText(newRequirements.get(i));
+			String text = newRequirements.get(i);
+			achievementWidget.setText(text);
+			if (text != null && !text.isEmpty())
+			{
+				lastLine = i;
+			}
 		}
+
+		int numLines = lastLine;
+		clientThread.invokeLater(() -> client.runScript(ScriptID.DIARY_QUEST_UPDATE_LINECOUNT, 1, numLines));
 	}
 
 	private List<String> getOriginalAchievements(Widget[] children)