diff --git a/ArchiSteamFarm/ArchiSteamFarm.csproj b/ArchiSteamFarm/ArchiSteamFarm.csproj
index 4d306b34b..97b71e0da 100644
--- a/ArchiSteamFarm/ArchiSteamFarm.csproj
+++ b/ArchiSteamFarm/ArchiSteamFarm.csproj
@@ -5,7 +5,7 @@
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <AssemblyVersion>3.0.0.0</AssemblyVersion>
     <FileVersion>3.0.0.0</FileVersion>
-    <LangVersion>latest</LangVersion>
+    <LangVersion>7</LangVersion>
     <ErrorReport>none</ErrorReport>
     <ApplicationIcon>ASF.ico</ApplicationIcon>
     <Copyright>Copyright © ArchiSteamFarm 2015-2017</Copyright>
diff --git a/ArchiSteamFarm/WebBrowser.cs b/ArchiSteamFarm/WebBrowser.cs
index ca108ad78..138ebd7bc 100644
--- a/ArchiSteamFarm/WebBrowser.cs
+++ b/ArchiSteamFarm/WebBrowser.cs
@@ -150,12 +150,12 @@ namespace ArchiSteamFarm {
 		internal async Task<T> UrlGetToJsonResultRetry<T>(string request, string referer = null) {
 			if (string.IsNullOrEmpty(request)) {
 				ArchiLogger.LogNullError(nameof(request));
-				return default;
+				return default(T);
 			}
 
 			string json = await UrlGetToContentRetry(request, referer).ConfigureAwait(false);
 			if (string.IsNullOrEmpty(json)) {
-				return default;
+				return default(T);
 			}
 
 			try {
@@ -167,7 +167,7 @@ namespace ArchiSteamFarm {
 					ArchiLogger.LogGenericDebug(string.Format(Strings.Content, json));
 				}
 
-				return default;
+				return default(T);
 			}
 		}
 
@@ -275,12 +275,12 @@ namespace ArchiSteamFarm {
 		internal async Task<T> UrlPostToJsonResultRetry<T>(string request, ICollection<KeyValuePair<string, string>> data = null, string referer = null) {
 			if (string.IsNullOrEmpty(request)) {
 				ArchiLogger.LogNullError(nameof(request));
-				return default;
+				return default(T);
 			}
 
 			string json = await UrlPostToContentRetry(request, data, referer).ConfigureAwait(false);
 			if (string.IsNullOrEmpty(json)) {
-				return default;
+				return default(T);
 			}
 
 			try {
@@ -292,7 +292,7 @@ namespace ArchiSteamFarm {
 					ArchiLogger.LogGenericDebug(string.Format(Strings.Content, json));
 				}
 
-				return default;
+				return default(T);
 			}
 		}