diff --git a/lib/rpc.py b/lib/rpc.py
index fd1f45ff3d415e1f490806786614e96d302f9041..dac6f3899307dc0c86bd811e7c7cb2da7abacfe7 100644
--- a/lib/rpc.py
+++ b/lib/rpc.py
@@ -91,7 +91,7 @@ class NodeController:
       reactor.stop()
 
   def cb_call(self, obj):
-    """Callback for successfull connect.
+    """Callback for successful connect.
 
     If the connect and login sequence succeeded, we proceed with
     making the actual call.
diff --git a/testing/ganeti.utils_unittest.py b/testing/ganeti.utils_unittest.py
index 947697d04d25510470c81a049f39019243081d1a..033bdbe79dc039ef5d667e6c9a5a4609442f9574 100755
--- a/testing/ganeti.utils_unittest.py
+++ b/testing/ganeti.utils_unittest.py
@@ -101,7 +101,7 @@ class TestRunCmd(unittest.TestCase):
     self.magic = time.ctime() + " ganeti test"
 
   def testOk(self):
-    """Test successfull exit code"""
+    """Test successful exit code"""
     result = RunCmd("/bin/sh -c 'exit 0'")
     self.assertEqual(result.exit_code, 0)