diff --git a/prober.py b/prober.py
index faa9ec5..c7c0ebf 100755
--- a/prober.py
+++ b/prober.py
@@ -114,6 +114,8 @@
     ClientCertURLsNotNull12(),
     ClientCertURLsNotNull12PFS(),
     TrustedCANull(),
+    TrustedCANull12(),
+    TrustedCANull12PFS(),
     TrustedCAOverflow(),
     TrustedCAUnderflow(),
     TruncatedHMACNotNull(),
diff --git a/probes.py b/probes.py
index e2441d2..f4b7711 100644
--- a/probes.py
+++ b/probes.py
@@ -1203,6 +1203,16 @@ def test(self, sock):
         sock.write(self.make_trusted_ca_hello(''))
 
 
+class TrustedCANull12(TrustedCANull, NormalHandshake12):
+    '''As with TrustedCANull but in TLSv1.2 hello'''
+    pass
+
+
+class TrustedCANull12PFS(TrustedCANull, NormalHandshake12PFS):
+    '''As with TrustedCANull, but in PFS TLSv1.2 hello'''
+    pass
+
+
 class TrustedCAOverflow(TrustedCANull):
     '''Send trusted CA keys extension smaller than length inside indicates'''
 
diff --git a/tests/test_probes.py b/tests/test_probes.py
index 35ef17e..5c8d6ea 100644
--- a/tests/test_probes.py
+++ b/tests/test_probes.py
@@ -1789,6 +1789,47 @@ def test_test(self):
                           b'\x00\x03\x00\x00'])
 
 
+class TestTrustedCANull12(unittest.TestCase):
+    def test_test(self):
+        probe = TrustedCANull12()
+        sock = MockSock()
+
+        probe.test(sock)
+
+        self.assertEqual(sock.sent_data,
+                         [b'\x16\x03\x01\x00W'
+                          b'\x01\x00\x00S'
+                          b'\x03\x03' +
+                          RANDOM_STR +
+                          b'\x00'
+                          b'\x00&' +
+                          DEFAULT_12_CIPHERS_STR +
+                          b'\x01\x00'
+                          b'\x00\x04'
+                          b'\x00\x03\x00\x00'])
+
+
+class TestTrustedCANull12PFS(unittest.TestCase):
+    def test_test(self):
+        probe = TrustedCANull12PFS()
+        sock = MockSock()
+
+        probe.test(sock)
+
+        self.maxDiff = None
+        self.assertEqual(sock.sent_data,
+                         [b"\x16\x03\x01\x00\x8f"
+                          b"\x01\x00\x00\x8b"
+                          b"\x03\x03" +
+                          RANDOM_STR +
+                          b"\x00"
+                          b"\x00^" +
+                          DEFAULT_PFS_CIPHERS_STR +
+                          b"\x01\x00"
+                          b'\x00\x04'
+                          b'\x00\x03\x00\x00'])
+
+
 class TestTrustedCAOverflow(unittest.TestCase):
     def test_test(self):
         probe = TrustedCAOverflow()