diff --git a/Facepunch.Steamworks/Client.cs b/Facepunch.Steamworks/Client.cs
index e70ee7a..d8c5490 100644
--- a/Facepunch.Steamworks/Client.cs
+++ b/Facepunch.Steamworks/Client.cs
@@ -114,8 +114,9 @@ public Client( uint appId )
             SteamId = native.user.GetSteamID();
             BetaName = native.apps.GetCurrentBetaName();
             OwnerSteamId = native.apps.GetAppOwner();
-            if (!String.IsNullOrEmpty(native.apps.GetAppInstallDir(AppId)) && Directory.Exists(native.apps.GetAppInstallDir(AppId)))
-                InstallFolder = new DirectoryInfo( native.apps.GetAppInstallDir( AppId ) );
+            var appInstallDir = native.apps.GetAppInstallDir(AppId);
+            if (!String.IsNullOrEmpty(appInstallDir) && Directory.Exists(appInstallDir))
+                InstallFolder = new DirectoryInfo(appInstallDir);
             BuildId = native.apps.GetAppBuildId();
             CurrentLanguage = native.apps.GetCurrentGameLanguage();
             AvailableLanguages = native.apps.GetAvailableGameLanguages().Split( new[] {';'}, StringSplitOptions.RemoveEmptyEntries ); // TODO: Assumed colon separated