diff --git a/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java b/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
index 9928b1a3..3887a493 100644
--- a/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
+++ b/src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java
@@ -686,6 +686,8 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener,
             case "scanning": return c.getString(R.string.state_scanning);
             case "cleaning": return c.getString(R.string.state_cleaning);
             case "syncing":  return c.getString(R.string.state_syncing);
+            case "unknown":  // Fallthrough
+            case "":         return c.getString(R.string.state_unknown);
         }
         if (BuildConfig.DEBUG) {
             throw new AssertionError("Unexpected folder state");
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 5a0e5bb3..cb451038 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -370,5 +370,6 @@ Please report any problems you encounter via Github.</string>
     <string name="state_scanning">Scanning</string>
     <string name="state_cleaning">Cleaning</string>
     <string name="state_syncing">Syncing</string>
+    <string name="state_unknown">Unknown</string>
 
 </resources>