diff --git a/src/csharp/Microsoft.Spark.E2ETest/SparkFixture.cs b/src/csharp/Microsoft.Spark.E2ETest/SparkFixture.cs
index 83e6a78d7..ac08a703c 100644
--- a/src/csharp/Microsoft.Spark.E2ETest/SparkFixture.cs
+++ b/src/csharp/Microsoft.Spark.E2ETest/SparkFixture.cs
@@ -27,7 +27,7 @@ public class EnvironmentVariableNames
             /// <summary>
             /// This environment variable specifies a comma-separated list of Maven packages.
             /// </summary>
-            public const string Packages = "packages";
+            public const string Packages = "DOTNET_SPARKFIXTURE_PACKAGES";
 
             /// <summary>
             /// This environment variable specifies the path where the DotNet worker is installed.