diff --git a/UnitTests/TestHelper.cs b/UnitTests/TestHelper.cs
new file mode 100644
index 0000000..a2ba3f3
--- /dev/null
+++ b/UnitTests/TestHelper.cs
@@ -0,0 +1,62 @@
+//
+// TestHelper.cs
+//
+// Author: Jeffrey Stedfast <jestedfa@microsoft.com>
+//
+// Copyright (c) 2017 Microsoft Corp.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using System.IO;
+
+using NUnit.Framework;
+
+namespace UnitTests {
+	[SetUpFixture]
+	static class TestHelper
+	{
+		public static readonly string ProjectDir;
+
+		static TestHelper ()
+		{
+#if NET5_0_OR_GREATER
+			var codeBase = typeof (TestHelper).Assembly.Location;
+#else
+			var codeBase = typeof (TestHelper).Assembly.CodeBase;
+			if (codeBase.StartsWith ("file://", StringComparison.OrdinalIgnoreCase))
+				codeBase = codeBase.Substring ("file://".Length);
+
+			if (Path.DirectorySeparatorChar == '\\') {
+				if (codeBase[0] == '/')
+					codeBase = codeBase.Substring (1);
+
+				codeBase = codeBase.Replace ('/', '\\');
+			}
+#endif
+
+			var dir = Path.GetDirectoryName (codeBase);
+
+			while (Path.GetFileName (dir) != "UnitTests")
+				dir = Path.GetFullPath (Path.Combine (dir, ".."));
+
+			ProjectDir = Path.GetFullPath (dir);
+		}
+	}
+}
diff --git a/UnitTests/TestMobileProvisionIndex.cs b/UnitTests/TestMobileProvisionIndex.cs
index 90b53ad..2cf10d0 100644
--- a/UnitTests/TestMobileProvisionIndex.cs
+++ b/UnitTests/TestMobileProvisionIndex.cs
@@ -33,7 +33,14 @@
 namespace UnitTests {
 	[TestFixture]
 	public class TestMobileProvisionIndex {
-		static readonly string[] ProfileDirectories = new string [] { "../../TestData/Provisioning Profiles" };
+		static readonly string[] ProfileDirectories;
+
+		static TestMobileProvisionIndex ()
+		{
+			ProfileDirectories = new string [] {
+				Path.Combine (TestHelper.ProjectDir, "TestData", "Provisioning Profiles")
+			};
+		}
 
 		[Test]
 		public void TestCreateIndex ()