diff --git a/BizHawk.MultiClient/AboutBox.cs b/BizHawk.MultiClient/AboutBox.cs
index 719e9a34ca..7569cc23b4 100644
--- a/BizHawk.MultiClient/AboutBox.cs
+++ b/BizHawk.MultiClient/AboutBox.cs
@@ -159,7 +159,11 @@ namespace BizHawk.MultiClient
 
         private void AboutBox_Load(object sender, EventArgs e)
         {
-			Text = "BizHawk Interim Build SVN r" + SubWCRev.SVN_REV;
+#if DEBUG
+			Text = "BizHawk Interim Build (DEBUG MODE) SVN r" + SubWCRev.SVN_REV;
+#else
+			Text = "BizHawk Interim Build (RELEASE MODE) SVN r" + SubWCRev.SVN_REV;
+#endif
         }
 
 		private void Close_Click(object sender, EventArgs e)