diff --git a/nfs4.0/testserver.py b/nfs4.0/testserver.py
index 0ef010a..f2c4156 100755
--- a/nfs4.0/testserver.py
+++ b/nfs4.0/testserver.py
@@ -85,6 +85,8 @@ def scan_options(p):
                  help="Skip final cleanup of test directory")
     p.add_option("--outfile", "--out", default=None, metavar="FILE",
                  help="Store test results in FILE [%default]")
+    p.add_option("--jsonout", "--json", default=None, metavar="FILE",
+                 help="Store test results in JSON format [%default]")
     p.add_option("--xmlout", "--xml", default=None, metavar="FILE",
                  help="Store test results in xml format [%default]")
     p.add_option("--debug_fail", action="store_true", default=False,
@@ -378,8 +380,11 @@ def main():
     if fail:
         print("\nWARNING: could not clean testdir due to:\n%s\n" % err)
 
-    if opt.xmlout is not None:
+    if opt.jsonout is not None:
+        testmod.json_printresults(tests, opt.jsonout)
+    elif opt.xmlout is not None:
         testmod.xml_printresults(tests, opt.xmlout)
+
     if nfail < 0:
         sys.exit(3)
     if nfail > 0:
diff --git a/nfs4.1/testmod.py b/nfs4.1/testmod.py
index e368853..4b4ed24 100644
--- a/nfs4.1/testmod.py
+++ b/nfs4.1/testmod.py
@@ -13,6 +13,7 @@ import re
 import sys
 import time
 from traceback import format_exception, print_exc
+import json
 import xml.dom.minidom
 import datetime
 
@@ -467,6 +468,43 @@ def printresults(tests, opts, file=None):
           (count[SKIP], count[FAIL], count[WARN], count[PASS]), file=file)
     return count[FAIL]
 
+def json_printresults(tests, file_name, suite='all'):
+    with open(file_name, 'w') as fd:
+        failures = 0
+        skipped = 0
+        total_time = 0
+        data = {}
+        data["tests"] = len(tests)
+        data["errors"] = 0
+        data["timestamp"] = str(datetime.datetime.now())
+        data["name"] = suite
+        data["testcase"] = []
+        for t in tests:
+            test = {
+                "name": t.name,
+                "classname": t.suite,
+                "time": str(t.time_taken),
+            }
+
+            total_time += t.time_taken
+            if t.result == TEST_FAIL:
+                failures += 1
+                test["failure"] = {
+                        "message" : t.result.msg,
+                        "err" : ''.join(t.result.tb)
+                }
+            elif t.result == TEST_OMIT:
+                skipped += 1
+                test["skipped"] = 1
+
+            data["testcase"].append(test)
+
+        data["failures"] = failures
+        data["skipped"] = skipped
+        data["time"] = total_time
+
+        fd.write(json.dumps(data, indent=4, sort_keys=True))
+
 def xml_printresults(tests, file_name, suite='all'):
     with open(file_name, 'w') as fd:
         failures = 0
@@ -484,7 +522,7 @@ def xml_printresults(tests, file_name, suite='all'):
             testsuite.appendChild(testcase)
             testcase.setAttribute("name", t.name)
             testcase.setAttribute("classname", t.suite)
-            testcase.setAttribute("time", str(t.time_taken))
+            testcase.setAttribute("time", t.time_taken)
 
             total_time += t.time_taken
             if t.result == TEST_FAIL:
diff --git a/nfs4.1/testserver.py b/nfs4.1/testserver.py
index d3c44c7..085f007 100755
--- a/nfs4.1/testserver.py
+++ b/nfs4.1/testserver.py
@@ -68,6 +68,8 @@ def scan_options(p):
                  help="Skip final cleanup of test directory")
     p.add_option("--outfile", "--out", default=None, metavar="FILE",
                  help="Store test results in FILE [%default]")
+    p.add_option("--jsonout", "--json", default=None, metavar="FILE",
+                 help="Store test results in JSON format [%default]")
     p.add_option("--xmlout", "--xml", default=None, metavar="FILE",
                  help="Store test results in xml format [%default]")
     p.add_option("--debug_fail", action="store_true", default=False,
@@ -363,7 +365,9 @@ def main():
     if fail:
         print("\nWARNING: could not clean testdir due to:\n%s\n" % err)
 
-    if opt.xmlout is not None:
+    if opt.jsonout is not None:
+        testmod.json_printresults(tests, opt.jsonout)
+    elif opt.xmlout is not None:
         testmod.xml_printresults(tests, opt.xmlout)
 
 if __name__ == "__main__":
