diff --git a/src/vazkii/instancesync/DownloadManager.java b/src/vazkii/instancesync/DownloadManager.java
index 47a4c9a..97e3131 100644
--- a/src/vazkii/instancesync/DownloadManager.java
+++ b/src/vazkii/instancesync/DownloadManager.java
@@ -13,6 +13,7 @@
 
 import vazkii.instancesync.Instance.Addon;
 import vazkii.instancesync.Instance.Addon.AddonFile;
+import vazkii.instancesync.Instance.Scan;
 
 public class DownloadManager {
 
@@ -47,6 +48,9 @@ public void downloadInstance(Instance instance) {
 			System.out.println("Downloads were interrupted!");
 			e.printStackTrace();
 		}
+		
+		for(Scan s : instance.cachedScans)
+			acceptableFilenames.add(s.folderName);
 
 		deleteRemovedMods();
 	}
diff --git a/src/vazkii/instancesync/Instance.java b/src/vazkii/instancesync/Instance.java
index dceff7a..cfbd41d 100644
--- a/src/vazkii/instancesync/Instance.java
+++ b/src/vazkii/instancesync/Instance.java
@@ -3,7 +3,8 @@
 public class Instance {
 
 	public Addon[] installedAddons;
-	
+	public Scan[] cachedScans;
+
 	public static class Addon {
 		
 		public AddonFile installedFile;
@@ -27,4 +28,10 @@ public String toString() {
 		
 	}
 	
+	public static class Scan {
+		
+		public String folderName;
+		
+	}
+	
 }