diff --git a/src/Orchard/Localization/Services/CurrentCultureWorkContext.cs b/src/Orchard/Localization/Services/CurrentCultureWorkContext.cs
index 16208ccbf..7efe5c68e 100644
--- a/src/Orchard/Localization/Services/CurrentCultureWorkContext.cs
+++ b/src/Orchard/Localization/Services/CurrentCultureWorkContext.cs
@@ -7,11 +7,14 @@ namespace Orchard.Localization.Services {
     public class CurrentCultureWorkContext : IWorkContextStateProvider {
         private readonly IEnumerable<ICultureSelector> _cultureSelectors;
         private readonly IHttpContextAccessor _httpContextAccessor;
+        private readonly ICultureManager _cultureManager;
 
         public CurrentCultureWorkContext(IEnumerable<ICultureSelector> cultureSelectors,
-            IHttpContextAccessor httpContextAccessor) {
+            IHttpContextAccessor httpContextAccessor,
+            ICultureManager cultureManager) {
             _cultureSelectors = cultureSelectors;
             _httpContextAccessor = httpContextAccessor;
+            _cultureManager = cultureManager;
         }
 
         public Func<WorkContext, T> Get<T>(string name) {
@@ -25,11 +28,13 @@ namespace Orchard.Localization.Services {
         private string GetCurrentCulture() {
             var httpContext = _httpContextAccessor.Current();
 
+            var supportedCultures = _cultureManager.ListCultures().ToList();
+
             var culture = _cultureSelectors
                 .Select(c => c.GetCulture(httpContext))
                 .Where(c => c != null)
                 .OrderByDescending(c => c.Priority)
-                .FirstOrDefault(c => !String.IsNullOrEmpty(c.CultureName));
+                .FirstOrDefault(c => !String.IsNullOrEmpty(c.CultureName) && supportedCultures.Any(s => s.Equals(c.CultureName, StringComparison.OrdinalIgnoreCase)));
 
             return culture == null ? String.Empty : culture.CultureName;
         }