diff --git a/src/Microsoft.TestPlatform.CrossPlatEngine/Hosting/DotnetTestHostManager.cs b/src/Microsoft.TestPlatform.CrossPlatEngine/Hosting/DotnetTestHostManager.cs
index 4848d3110c..40cdb8d058 100644
--- a/src/Microsoft.TestPlatform.CrossPlatEngine/Hosting/DotnetTestHostManager.cs
+++ b/src/Microsoft.TestPlatform.CrossPlatEngine/Hosting/DotnetTestHostManager.cs
@@ -177,7 +177,7 @@ public virtual TestProcessStartInfo GetTestHostProcessStartInfo(
             // G:\tmp\netcore-test\bin\Debug\netcoreapp1.0\netcore-test.dll
             startInfo.Arguments = args;
             startInfo.EnvironmentVariables = environmentVariables ?? new Dictionary<string, string>();
-            startInfo.WorkingDirectory = Directory.GetCurrentDirectory();
+            startInfo.WorkingDirectory = sourceDirectory;
 
             return startInfo;
         }
diff --git a/test/Microsoft.TestPlatform.CrossPlatEngine.UnitTests/Hosting/DotnetTestHostManagerTests.cs b/test/Microsoft.TestPlatform.CrossPlatEngine.UnitTests/Hosting/DotnetTestHostManagerTests.cs
index 6e9c7e9c7a..7038151ad4 100644
--- a/test/Microsoft.TestPlatform.CrossPlatEngine.UnitTests/Hosting/DotnetTestHostManagerTests.cs
+++ b/test/Microsoft.TestPlatform.CrossPlatEngine.UnitTests/Hosting/DotnetTestHostManagerTests.cs
@@ -257,14 +257,14 @@ public void GetTestHostProcessStartInfoShouldThrowExceptionWhenDotnetIsNotInstal
         }
 
         [TestMethod]
-        public void GetTestHostProcessStartInfoShouldIncludeCurrentDirectoryAsWorkingDirectory()
+        public void GetTestHostProcessStartInfoShouldIncludeSourceDirectoryAsWorkingDirectory()
         {
             // Absolute path to the source directory
             var sourcePath = Path.Combine($"{Path.DirectorySeparatorChar}tmp", "test.dll");
             this.mockFileHelper.Setup(ph => ph.Exists(@"\tmp\testhost.dll")).Returns(true);
             var startInfo = this.dotnetHostManager.GetTestHostProcessStartInfo(new[] { sourcePath }, null, this.defaultConnectionInfo);
-
-            Assert.AreEqual(Directory.GetCurrentDirectory(), startInfo.WorkingDirectory);
+            
+            Assert.AreEqual($"{Path.DirectorySeparatorChar}tmp", startInfo.WorkingDirectory);
         }
 
         [TestMethod]