diff --git a/GitTfs/GitTfs.cs b/GitTfs/GitTfs.cs
index 6209f8b1..36a5d9ef 100644
--- a/GitTfs/GitTfs.cs
+++ b/GitTfs/GitTfs.cs
@@ -64,6 +64,7 @@ namespace Sep.Git.Tfs
             versionString += " " + GetType().Assembly.GetName().Version;
             versionString += GetGitCommitForVersionString();
             versionString += " (TFS client library " + tfsHelper.TfsClientLibraryVersion + ")";
+            versionString += " (" + (Environment.Is64BitProcess ? "64-bit" : "32-bit") + ")";
             return versionString;
         }