diff --git a/UnityPlugin/Facepunch.Steamworks.Posix.dll.meta b/UnityPlugin/Facepunch.Steamworks.Posix.dll.meta
index 1e31fb9..b6527c9 100644
--- a/UnityPlugin/Facepunch.Steamworks.Posix.dll.meta
+++ b/UnityPlugin/Facepunch.Steamworks.Posix.dll.meta
@@ -5,7 +5,8 @@ PluginImporter:
   serializedVersion: 2
   iconMap: {}
   executionOrder: {}
-  defineConstraints: []
+  defineConstraints:
+  - UNITY_EDITOR_OSX || UNITY_EDITOR_LINUX
   isPreloaded: 0
   isOverridable: 0
   isExplicitlyReferenced: 0
@@ -33,7 +34,7 @@ PluginImporter:
       settings:
         CPU: AnyCPU
         DefaultValueInitialized: true
-        OS: OSX
+        OS: AnyOS
   - first:
       Facebook: Win
     second: