diff --git a/src/Core/NETPortable/NetPortableProfileTable.cs b/src/Core/NETPortable/NetPortableProfileTable.cs
index 74b68f6da..8d0d10a5c 100644
--- a/src/Core/NETPortable/NetPortableProfileTable.cs
+++ b/src/Core/NETPortable/NetPortableProfileTable.cs
@@ -117,7 +117,7 @@ internal static NetPortableProfileCollection BuildPortableProfileCollection()
             {
                 foreach (string versionDir in Directory.EnumerateDirectories(portableRootDirectory, "v*", SearchOption.TopDirectoryOnly))
                 {
-                    string profileFilesPath = versionDir + @"\Profile\";
+                    string profileFilesPath = Path.Combine(versionDir, "Profile");
                     profileCollection.AddRange(LoadProfilesFromFramework(versionDir, profileFilesPath));
                 }
             }