diff --git a/NightNight/Classes/MixedResource.swift b/NightNight/Classes/MixedResource.swift
index 4388f24..7640839 100644
--- a/NightNight/Classes/MixedResource.swift
+++ b/NightNight/Classes/MixedResource.swift
@@ -57,7 +57,7 @@ public class MixedBarStyle: MixedResource<UIBarStyle> {
     }
 }
 
-open class MixedKeyboardAppearance: MixedResource<UIKeyboardAppearance> {
+public class MixedKeyboardAppearance: MixedResource<UIKeyboardAppearance> {
     public override init(normal: UIKeyboardAppearance, night: UIKeyboardAppearance) {
         super.init(normal: normal, night: night)
     }