diff --git a/vcsserver/base.py b/vcsserver/base.py
--- a/vcsserver/base.py
+++ b/vcsserver/base.py
@@ -84,8 +84,11 @@ def raise_from_original(new_type):
     Raise a new exception type with original args and traceback.
     """
     exc_type, exc_value, exc_traceback = sys.exc_info()
+    new_exc = new_type(*exc_value.args)
+    # store the original traceback into the new exc
+    new_exc._org_exc_tb = traceback.format_exc(exc_traceback)
 
     try:
-        raise new_type(*exc_value.args), None, exc_traceback
+        raise new_exc, None, exc_traceback
     finally:
         del exc_traceback
diff --git a/vcsserver/exceptions.py b/vcsserver/exceptions.py
--- a/vcsserver/exceptions.py
+++ b/vcsserver/exceptions.py
@@ -37,6 +37,7 @@ def _make_exception(kind, org_exc, *args
     exc = Exception(*args)
     exc._vcs_kind = kind
     exc._org_exc = org_exc
+    exc._org_exc_tb = ''
     return exc
 
 
diff --git a/vcsserver/http_main.py b/vcsserver/http_main.py
--- a/vcsserver/http_main.py
+++ b/vcsserver/http_main.py
@@ -362,8 +362,10 @@ class HTTPApplication(object):
 
             org_exc = getattr(e, '_org_exc', None)
             org_exc_name = None
+            org_exc_tb = ''
             if org_exc:
                 org_exc_name = org_exc.__class__.__name__
+                org_exc_tb = getattr(e, '_org_exc_tb', '')
                 # replace our "faked" exception with our org
                 exc_info[0] = org_exc.__class__
                 exc_info[1] = org_exc
@@ -383,6 +385,7 @@ class HTTPApplication(object):
                     'message': e.message,
                     'traceback': tb_info,
                     'org_exc': org_exc_name,
+                    'org_exc_tb': org_exc_tb,
                     'type': type_
                 }
             }