diff --git a/EgwCoreLib.Lux.Data/Services/ImageCacheService.cs b/EgwCoreLib.Lux.Data/Services/ImageCacheService.cs
index 6b2c755f..21f48305 100644
--- a/EgwCoreLib.Lux.Data/Services/ImageCacheService.cs
+++ b/EgwCoreLib.Lux.Data/Services/ImageCacheService.cs
@@ -150,7 +150,7 @@ namespace EgwCoreLib.Lux.Data.Services
             }
            
             string rndImg = $"{DateTime.Now:HHmmssfff}";
-            string fullUrl = $"{baseUrl}/{tag}/{imgUID}-{rndImg}.{fType}?envir={envir}".Replace("////", "//");
+            string fullUrl = $"{baseUrl}/{tag}/{imgUID}-{rndImg}.{fType}?env={envir}".Replace("////", "//");
             return fullUrl;
         }