diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/Plugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/Plugin.java
index f73b4fc67c..d2e4967592 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/Plugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/Plugin.java
@@ -28,6 +28,7 @@ import com.google.common.util.concurrent.AbstractIdleService;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.concurrent.Executor;
 import net.runelite.client.ui.overlay.Overlay;
 
 public abstract class Plugin extends AbstractIdleService
@@ -42,4 +43,17 @@ public abstract class Plugin extends AbstractIdleService
 		Overlay overlay = getOverlay();
 		return overlay != null ? Arrays.asList(overlay) : Collections.EMPTY_LIST;
 	}
+
+	/**
+	 * Override AbstractIdleService's default executor to instead execute in
+	 * the main thread. Prevents plugins from all being initialized from
+	 * different threads, which causes the plugin order on the navbar to be
+	 * undefined
+	 * @return
+	 */
+	@Override
+	protected Executor executor()
+	{
+		return r -> r.run();
+	}
 }