diff --git a/runelite-client/src/main/java/net/runelite/client/rs/ClientLoader.java b/runelite-client/src/main/java/net/runelite/client/rs/ClientLoader.java
index 17a927f789..39030080e5 100644
--- a/runelite-client/src/main/java/net/runelite/client/rs/ClientLoader.java
+++ b/runelite-client/src/main/java/net/runelite/client/rs/ClientLoader.java
@@ -84,6 +84,7 @@ public class ClientLoader
 	{
 		try
 		{
+			updateCheckMode = CUSTOM;
 			Manifest manifest = new Manifest();
 			manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
 			RSConfig config = clientConfigLoader.fetch();